diff --git a/cmdline/list.c b/cmdline/list.c
index 761aeaed..7d981da5 100644
--- a/cmdline/list.c
+++ b/cmdline/list.c
@@ -62,7 +62,7 @@ void state_list(struct snapraid_state* state)
 			file_size += file->size;
 
 			if (state->opt.gui_verbose)
-				log_tag("file:%s:%s:%" PRIu64 ":%" PRIi64 ":%u:%" PRIi64 "\n", disk->name, esc_tag(file->sub, esc_buffer), file->size, file->mtime_sec, file->mtime_nsec, file->inode);
+				log_tag("file:%s:%s:%" PRIu64 ":%" PRIi64 ":%u:%" PRIu64 "\n", disk->name, esc_tag(file->sub, esc_buffer), file->size, file->mtime_sec, file->mtime_nsec, file->inode);
 
 			t = file->mtime_sec;
 #if HAVE_LOCALTIME_R
diff --git a/doc/snapraid_log.1 b/doc/snapraid_log.1
index c5a23063..c899097f 100644
--- a/doc/snapraid_log.1
+++ b/doc/snapraid_log.1
@@ -67,9 +67,16 @@ is escaped to \\\\.
 .PD
 .RE
 .PP
-Some tags are output only when the \`\-\-gui\` option is used. They provide
-extra verbose state and runtime progress only useful for a GUI
-interface.
+Some tags are output only when the \`\-\-gui\` or \`\-\-gui\-verbose\` option
+is used. They provide extra verbose state and runtime progress only
+useful for a GUI interface.
+.PP
+Integer values are marked as \`uint\` when they are unsigned and as \`int\`
+when they are signed. However, for practical purposes you can treat
+all of them as signed integers.
+All integer values should be assumed to be 64 bits wide, regardless
+of the signed/unsigned marker.
+Floating point values are marked as \`float\`.
 .SH CONFIGURATION TAGS 
 These tags report the memory usage and global configuration.
 .TP
@@ -133,7 +140,7 @@ This is the optional mount point for the \'share\' feature.
 .TP
 .B autosave:<bytes>
 If the autosave feature is enabled, and after how many bytes
-(uint64). This specifies the interval for content file saving.
+(uint). This specifies the interval for content file saving.
 .TP
 .B filter:<pattern>
 All the active filters with their patterns. These patterns
@@ -175,7 +182,7 @@ in the content file.
 The path (escaped).
 .HP 4
 .I <size>
-The size of the parity file (uint64).
+The size of the parity file (uint).
 .PD
 .RE
 .TP
@@ -202,10 +209,10 @@ The size of disk and parity as stored in the content file.
 Name of the data or parity disk.
 .HP 4
 .I <size>
-The size of the data in the disk or parity (uint64).
+The size of the data in the disk or parity (uint).
 .HP 4
 .I <free_size>
-The free size in the disk or parity (uint64).
+The free size in the disk or parity (uint).
 .PD
 .RE
 .TP
@@ -228,7 +235,7 @@ The number of elements (uint)
 The version of SnapRAID run.
 .TP
 .B unixtime:<time>
-The current time in the unix format (uint64), representing
+The current time in the unix format (uint), representing
 seconds since the epoch.
 .TP
 .B time:<YYYY\-MM\-DD HH:MM:SS>
@@ -242,30 +249,31 @@ All the arguments of the executable command. The 0 one is the
 executable run.
 .TP
 .B memory:used:<bytes>
-The total memory currently used by the application in bytes (uint64).
+The total memory currently used by the application in bytes (uint).
 .TP
 .B memory:block:<bytes>
-Size of the internal \`snapraid_block\` structure in bytes (uint64).
+Size of the internal \`snapraid_block\` structure in bytes (uint).
 .TP
 .B memory:extent:<bytes>
-Size of the internal \`snapraid_extent\` structure in bytes (uint64).
+Size of the internal \`snapraid_extent\` structure in bytes (uint).
 .TP
 .B memory:file:<bytes>
-Size of the internal \`snapraid_file\` structure in bytes (uint64).
+Size of the internal \`snapraid_file\` structure in bytes (uint).
 .TP
 .B memory:link:<bytes>
-Size of the internal \`snapraid_link\` structure in bytes (uint64).
+Size of the internal \`snapraid_link\` structure in bytes (uint).
 .TP
 .B memory:dir:<bytes>
-Size of the internal \`snapraid_dir\` structure in bytes (uint64).
+Size of the internal \`snapraid_dir\` structure in bytes (uint).
 .SH SCAN TAGS 
 These tags report detected differences between the filesystem and the
 content file. They are output for every discovered change, and
 \`scan:equal\` is only output when the \`\-\-gui\` option is used.
 .TP
 .B scan:equal:<disk_name>:<path>
-A file, link, or directory is equal (unchanged) (GUI only).
+A file, link, or directory is equal (unchanged).
 No action is required for this item.
+Only with \`\-\-gui\-verbose\`.
 .RS 4
 .PD 0
 .HP 4
@@ -409,7 +417,7 @@ Current block index position processed (uint).
 Number of blocks processed (uint).
 .HP 4
 .I <sizedone>
-Current size processed (uint64).
+Current size processed (uint).
 .HP 4
 .I <perc>
 Completion percentage (uint).
@@ -554,7 +562,7 @@ by \`/N\` to indicate the split index, where N starts
 from 0. The \`/0\` is always omitted.
 .HP 4
 .I <device>
-The unique device ID (uint64).
+The unique device ID (uint).
 .HP 4
 .I <temp>
 The current temperature read from the disk in degrees
@@ -582,7 +590,7 @@ Only monotone increasing temperatures are included in the history.
 .PD 0
 .HP 4
 .I <device>
-The unique device ID (uint64).
+The unique device ID (uint).
 .HP 4
 .I <count>
 The total number of collected data points (uint).
@@ -610,26 +618,26 @@ where T_0 is the initial temperature.
 .PD 0
 .HP 4
 .I <device>
-The unique device ID (uint64).
+The unique device ID (uint).
 .HP 4
 .I <k_heat>
-The heating rate constant, k (double).
+The heating rate constant, k (float).
 .HP 4
 .I <t_ambient>
-The ambient temperature, T_ambient (double).
+The ambient temperature, T_ambient (float).
 .HP 4
 .I <t_steady>
-The estimated steady\-state temperature, T_steady (double),
+The estimated steady\-state temperature, T_steady (float),
 which is the maximum expected temperature of the disk.
 .HP 4
 .I <rmse>
-Root Mean Square Error of the fit (double).
+Root Mean Square Error of the fit (float).
 .HP 4
 .I <r_squared>
-Coefficient of determination (R^2) of the fit (double).
+Coefficient of determination (R^2) of the fit (float).
 .HP 4
 .I <max_error>
-Maximum absolute error of the fit (double).
+Maximum absolute error of the fit (float).
 .PD
 .RE
 .TP
@@ -681,7 +689,7 @@ This determines the maximum size of data that can be added.
 .B summary:file_count:<uint>
 Total number of files in the array.
 .TP
-.B summary:file_block_count:<uint64>
+.B summary:file_block_count:<uint>
 Total number of data blocks used by files.
 .TP
 .B summary:fragmented_file_count:<uint>
@@ -696,13 +704,13 @@ This is a measure of data fragmentation overhead.
 Total number of files with a zero sub\-second timestamp. This
 can occur on certain filesystems and may affect change detection.
 .TP
-.B summary:file_size:<uint64>
+.B summary:file_size:<uint>
 Total size of all files in bytes.
 .TP
-.B summary:parity_size:<uint64>
+.B summary:parity_size:<uint>
 Total size of allocated parity blocks in bytes.
 .TP
-.B summary:parity_size_max:<uint64>
+.B summary:parity_size_max:<uint>
 Maximum possible parity size (allocated + min free) in bytes.
 This is the effective maximum protection size.
 .TP
@@ -716,14 +724,14 @@ The previous hash algorithm used, if a rehash is in progress.
 The best hash algorithm for optimal performance based on
 system capabilities.
 .TP
-.B summary:total_wasted:<uint64>
+.B summary:total_wasted:<uint>
 Total wasted space (space on data disks exceeding parity
 capacity) in bytes.
 .TP
-.B summary:total_used:<uint64>
+.B summary:total_used:<uint>
 Total used space by data files in bytes.
 .TP
-.B summary:total_free:<uint64>
+.B summary:total_free:<uint>
 Total free space (usable by data) in bytes, limited by parity
 capacity.
 .TP
@@ -793,7 +801,7 @@ Number of excess fragments on the disk.
 .B summary:disk_zerosubsecond_file_count:<name>:<uint>
 Number of files with zero sub\-second timestamp on the disk.
 .TP
-.B summary:disk_file_size:<name>:<uint64>
+.B summary:disk_file_size:<name>:<uint>
 Total size of files on the disk in bytes.
 .TP
 .B summary:disk_block_allocated:<name>:<uint>
@@ -817,14 +825,14 @@ This is the logical limit imposed by the parity files.
 .B summary:disk_block_max:<name>:<uint>
 Maximum usable blocks (minimum of \`..._by_space\` and \`..._by_parity\`).
 .TP
-.B summary:disk_space_wasted:<name>:<int64>
+.B summary:disk_space_wasted:<name>:<int>
 Wasted space on the disk in bytes (positive if disk is larger
 than usable parity space).
 .TP
-.B summary:disk_used:<name>:<uint64>
+.B summary:disk_used:<name>:<uint>
 Used space on the disk in bytes.
 .TP
-.B summary:disk_free:<name>:<uint64>
+.B summary:disk_free:<name>:<uint>
 Free usable space on the disk in bytes, limited by \`disk_block_max\`.
 .TP
 .B summary:disk_use_percent:<name>:<uint>
@@ -1316,18 +1324,18 @@ The path of the file relative to the disk\'s root
 (escaped).
 .HP 4
 .I <size>
-The size of the file in bytes (uint64).
+The size of the file in bytes (uint).
 .HP 4
 .I <mtime_sec>
 The file\'s modification time in seconds since the
-Epoch (int64).
+Epoch (int).
 .HP 4
 .I <mtime_nsec>
 The file\'s modification time nanosecond component
 (uint).
 .HP 4
 .I <inode>
-The file\'s inode number (int64).
+The file\'s inode number (uint).
 .PD
 .RE
 .TP
@@ -1372,7 +1380,7 @@ Logs the total size of all regular files processed.
 .PD 0
 .HP 4
 .I <size>
-The cumulative size of all files (uint64, bytes).
+The cumulative size of all files (uint, bytes).
 .PD
 .RE
 .TP
@@ -1423,7 +1431,7 @@ The path of the previously processed duplicate file
 relative to its disk\'s mount point (escaped).
 .HP 4
 .I <size>
-The size of the duplicate file in bytes (uint64). This
+The size of the duplicate file in bytes (uint). This
 size corresponds to the file \`<file_path2>\`.
 .PD
 .RE
@@ -1448,7 +1456,7 @@ the sum of the sizes of all files considered duplicates.
 .PD 0
 .HP 4
 .I <size>
-The total size of duplicate files in gigabytes (uint64).
+The total size of duplicate files in gigabytes (uint).
 .PD
 .RE
 .TP
@@ -1584,11 +1592,11 @@ reported by specific SMART attributes (5, 187, 188, 197, 198).
 .PD 0
 .HP 4
 .I <afr_value>
-The computed Annual Failure Rate (double).
+The computed Annual Failure Rate (float).
 .HP 4
 .I <afr_prob>
 The probability of one or more failures in the
-next year (double).
+next year (float).
 .PD
 .RE
 .TP
@@ -1598,7 +1606,7 @@ Logs the size of the disk.
 .PD 0
 .HP 4
 .I <size_bytes>
-The disk size in bytes (uint64).
+The disk size in bytes (uint).
 .PD
 .RE
 .TP
@@ -1608,7 +1616,7 @@ Logs the total error count.
 .PD 0
 .HP 4
 .I <error_count>
-The total error count (uint64).
+The total error count (uint).
 .PD
 .RE
 .TP
@@ -1636,10 +1644,10 @@ returned \'DISK FAILING\'\`.
 .PD 0
 .HP 4
 .I <flags_decimal>
-The raw flags value (uint64, decimal).
+The raw flags value (uint, decimal).
 .HP 4
 .I <flags_hex>
-The raw flags value (uint64, hexadecimal).
+The raw flags value (uint, hexadecimal).
 .PD
 .RE
 .TP
@@ -1652,10 +1660,10 @@ Logs the raw value of any assigned SMART attribute.
 The SMART attribute ID (uint).
 .HP 4
 .I <value_decimal>
-The raw attribute value (uint64, decimal).
+The raw attribute value (uint, decimal).
 .HP 4
 .I <value_hex>
-The raw attribute value (uint64, hexadecimal).
+The raw attribute value (uint, hexadecimal).
 .PD
 .RE
 .TP
@@ -1685,7 +1693,7 @@ disk was used during that time.
 .PD 0
 .HP 4
 .I <access_number>
-Total number of accesses (int64).
+Total number of accesses (uint).
 .PD
 .RE
 .SS Summary 
@@ -1699,14 +1707,14 @@ one disk failure in the next year.
 .PD 0
 .HP 4
 .I <array_afr>
-The sum of AFRs of all disks in the array (double).
+The sum of AFRs of all disks in the array (float).
 .HP 4
 .I <array_prob>
 The probability of at least one disk failure in
 .PD
 .RE
 .RS 4
-the next year (double).
+the next year (float).
 .RE
 .SH DEVICE STATUS TAGS 
 These tags log the lifecycle of hardware interactions and external
@@ -1754,7 +1762,7 @@ exit code that was not explicitly recognized as a valid state.
 .HP 4
 .I <exit_code>
 The integer exit status returned by the
-process.
+process (int).
 .PD
 .RE
 .SH ERROR TAGS 
diff --git a/doc/snapraid_log.d b/doc/snapraid_log.d
index 2d5f2d48..c93c7326 100644
--- a/doc/snapraid_log.d
+++ b/doc/snapraid_log.d
@@ -47,10 +47,16 @@ Description
 		The carriage return - is escaped to \r.
 		The backslash - is escaped to \\.
 
-	Some tags are output only when the `--gui` option is used. They provide
-	extra verbose state and runtime progress only useful for a GUI
-	interface.
+	Some tags are output only when the `--gui` or `--gui-verbose` option
+	is used. They provide extra verbose state and runtime progress only
+	useful for a GUI interface.
 
+	Integer values are marked as `uint` when they are unsigned and as `int`
+	when they are signed. However, for practical purposes you can treat
+	all of them as signed integers.
+	All integer values should be assumed to be 64 bits wide, regardless
+	of the signed/unsigned marker.
+	Floating point values are marked as `float`.
 
 Configuration Tags
 	These tags report the memory usage and global configuration.
@@ -97,7 +103,7 @@ Configuration Tags
 
 	=autosave:<bytes>
 		If the autosave feature is enabled, and after how many bytes
-		(uint64). This specifies the interval for content file saving.
+		(uint). This specifies the interval for content file saving.
 
 	=filter:<pattern>
 		All the active filters with their patterns. These patterns
@@ -131,7 +137,7 @@ Content Tags
 		<uuid> - The UUID of the disk containing the path as stored
 			in the content file.
 		<path> - The path (escaped).
-		<size> - The size of the parity file (uint64).
+		<size> - The size of the parity file (uint).
 
 	=content_data:<disk_name>:<uuid>
 		The data disk as stored in the content file.
@@ -144,8 +150,8 @@ Content Tags
 		The size of disk and parity as stored in the content file.
 
 		<disk_name> - Name of the data or parity disk.
-		<size> - The size of the data in the disk or parity (uint64).
-		<free_size> - The free size in the disk or parity (uint64).
+		<size> - The size of the data in the disk or parity (uint).
+		<free_size> - The free size in the disk or parity (uint).
 
 	=content_info:<kind>:<counter>
 		The counters in the content file.
@@ -159,7 +165,7 @@ Diagnostics Tags
 		The version of SnapRAID run.
 
 	=unixtime:<time>
-		The current time in the unix format (uint64), representing
+		The current time in the unix format (uint), representing
 		seconds since the epoch.
 
 	=time:<YYYY-MM-DD HH:MM:SS>
@@ -173,22 +179,22 @@ Diagnostics Tags
 		executable run.
 
 	=memory:used:<bytes>
-		The total memory currently used by the application in bytes (uint64).
+		The total memory currently used by the application in bytes (uint).
 
 	=memory:block:<bytes>
-		Size of the internal `snapraid_block` structure in bytes (uint64).
+		Size of the internal `snapraid_block` structure in bytes (uint).
 
 	=memory:extent:<bytes>
-		Size of the internal `snapraid_extent` structure in bytes (uint64).
+		Size of the internal `snapraid_extent` structure in bytes (uint).
 
 	=memory:file:<bytes>
-		Size of the internal `snapraid_file` structure in bytes (uint64).
+		Size of the internal `snapraid_file` structure in bytes (uint).
 
 	=memory:link:<bytes>
-		Size of the internal `snapraid_link` structure in bytes (uint64).
+		Size of the internal `snapraid_link` structure in bytes (uint).
 
 	=memory:dir:<bytes>
-		Size of the internal `snapraid_dir` structure in bytes (uint64).
+		Size of the internal `snapraid_dir` structure in bytes (uint).
 
 Scan Tags
 	These tags report detected differences between the filesystem and the
@@ -196,8 +202,9 @@ Scan Tags
 	`scan:equal` is only output when the `--gui` option is used.
 
 	=scan:equal:<disk_name>:<path>
-		A file, link, or directory is equal (unchanged) (GUI only).
+		A file, link, or directory is equal (unchanged).
 		No action is required for this item.
+		Only with `--gui-verbose`.
 
 		<disk_name> - Name of the data disk.
 		<path> -  Path to the file/link/dir relative to the disk mount
@@ -298,7 +305,7 @@ General Progress and Execution Tags
 
 		<blockidx> - Current block index position processed (uint).
 		<blockdone> - Number of blocks processed (uint).
-		<sizedone> - Current size processed (uint64).
+		<sizedone> - Current size processed (uint).
 		<perc> - Completion percentage (uint).
 		<eta> - Estimated time to completion in seconds (uint).
 		<speed_mbs> - Data processing speed in MB/s (uint).
@@ -373,7 +380,7 @@ Thermal Tags
 			In case of split parity, the parity name is followed
 			by `/N` to indicate the split index, where N starts
 			from 0. The `/0` is always omitted.
-		<device> - The unique device ID (uint64).
+		<device> - The unique device ID (uint).
 		<temp> - The current temperature read from the disk in degrees
 			Celsius.
 
@@ -389,7 +396,7 @@ Thermal Tags
 		so far for a specific disk, used for fitting the heating model.
 		Only monotone increasing temperatures are included in the history.
 
-		<device> - The unique device ID (uint64).
+		<device> - The unique device ID (uint).
 		<count> - The total number of collected data points (uint).
 		<data_points> - A comma-separated list of temperature/time pairs.
 			Each pair is formatted as <temp>/<time_offset>.
@@ -404,14 +411,14 @@ Thermal Tags
 		The model is: T(t) = T_steady - (T_steady - T_0) e^(-kt),
 		where T_0 is the initial temperature.
 
-		<device> - The unique device ID (uint64).
-		<k_heat> - The heating rate constant, k (double).
-		<t_ambient> - The ambient temperature, T_ambient (double).
-		<t_steady> - The estimated steady-state temperature, T_steady (double), 
+		<device> - The unique device ID (uint).
+		<k_heat> - The heating rate constant, k (float).
+		<t_ambient> - The ambient temperature, T_ambient (float).
+		<t_steady> - The estimated steady-state temperature, T_steady (float), 
 			which is the maximum expected temperature of the disk.
-		<rmse> - Root Mean Square Error of the fit (double).
-		<r_squared> - Coefficient of determination (R^2) of the fit (double).
-		<max_error> - Maximum absolute error of the fit (double).
+		<rmse> - Root Mean Square Error of the fit (float).
+		<r_squared> - Coefficient of determination (R^2) of the fit (float).
+		<max_error> - Maximum absolute error of the fit (float).
 
 	=thermal:spindown
 		Indicates that the thermal alarm limit has been reached, and
@@ -452,7 +459,7 @@ Command Status Tags
 		This determines the maximum size of data that can be added.
 	=summary:file_count:<uint>
 		Total number of files in the array.
-	=summary:file_block_count:<uint64>
+	=summary:file_block_count:<uint>
 		Total number of data blocks used by files.
 	=summary:fragmented_file_count:<uint>
 		Total number of fragmented files, meaning files whose blocks
@@ -463,11 +470,11 @@ Command Status Tags
 	=summary:zerosubsecond_file_count:<uint>
 		Total number of files with a zero sub-second timestamp. This
 		can occur on certain filesystems and may affect change detection.
-	=summary:file_size:<uint64>
+	=summary:file_size:<uint>
 		Total size of all files in bytes.
-	=summary:parity_size:<uint64>
+	=summary:parity_size:<uint>
 		Total size of allocated parity blocks in bytes.
-	=summary:parity_size_max:<uint64>
+	=summary:parity_size_max:<uint>
 		Maximum possible parity size (allocated + min free) in bytes.
 		This is the effective maximum protection size.
 	=summary:hash:<name>
@@ -477,12 +484,12 @@ Command Status Tags
 	=summary:best_hash:<name>
 		The best hash algorithm for optimal performance based on
 		system capabilities.
-	=summary:total_wasted:<uint64>
+	=summary:total_wasted:<uint>
 		Total wasted space (space on data disks exceeding parity
 		capacity) in bytes.
-	=summary:total_used:<uint64>
+	=summary:total_used:<uint>
 		Total used space by data files in bytes.
-	=summary:total_free:<uint64>
+	=summary:total_free:<uint>
 		Total free space (usable by data) in bytes, limited by parity
 		capacity.
 	=summary:total_use_percent:<uint>
@@ -530,7 +537,7 @@ Command Status Tags
 		Number of excess fragments on the disk.
 	=summary:disk_zerosubsecond_file_count:<name>:<uint>
 		Number of files with zero sub-second timestamp on the disk.
-	=summary:disk_file_size:<name>:<uint64>
+	=summary:disk_file_size:<name>:<uint>
 		Total size of files on the disk in bytes.
 	=summary:disk_block_allocated:<name>:<uint>
 		Highest block index used on the disk + 1.
@@ -547,12 +554,12 @@ Command Status Tags
 		This is the logical limit imposed by the parity files.
 	=summary:disk_block_max:<name>:<uint>
 		Maximum usable blocks (minimum of `..._by_space` and `..._by_parity`).
-	=summary:disk_space_wasted:<name>:<int64>
+	=summary:disk_space_wasted:<name>:<int>
 		Wasted space on the disk in bytes (positive if disk is larger
 		than usable parity space).
-	=summary:disk_used:<name>:<uint64>
+	=summary:disk_used:<name>:<uint>
 		Used space on the disk in bytes.
-	=summary:disk_free:<name>:<uint64>
+	=summary:disk_free:<name>:<uint>
 		Free usable space on the disk in bytes, limited by `disk_block_max`.
 	=summary:disk_use_percent:<name>:<uint>
 		Disk use percentage relative to `disk_block_max`.
@@ -827,12 +834,12 @@ Command List Tags
 		<disk_name> - The configured name of the disk.
 		<subpath> - The path of the file relative to the disk's root
 			(escaped).
-		<size> - The size of the file in bytes (uint64).
+		<size> - The size of the file in bytes (uint).
 		<mtime_sec> - The file's modification time in seconds since the
-			Epoch (int64).
+			Epoch (int).
 		<mtime_nsec> - The file's modification time nanosecond component
 			(uint).
-		<inode> - The file's inode number (int64).
+		<inode> - The file's inode number (uint).
 
 	=link_<type>:<disk_name>:<subpath>:<linkto>
 		Logs details for a link found on a disk. The `<type>` component
@@ -857,7 +864,7 @@ Command List Tags
 	=summary:file_size:<size>
 		Logs the total size of all regular files processed.
 
-		<size> - The cumulative size of all files (uint64, bytes).
+		<size> - The cumulative size of all files (uint, bytes).
 
 	=summary:link_count:<count>
 		Logs the total number of links processed (hardlinks, symlinks,
@@ -892,7 +899,7 @@ Command Dup Tags
 			of `<file_path1>`.
 		<file_path2> - The path of the previously processed duplicate file
 			relative to its disk's mount point (escaped).
-		<size> - The size of the duplicate file in bytes (uint64). This
+		<size> - The size of the duplicate file in bytes (uint). This
 			size corresponds to the file `<file_path2>`.
 
     Summary Tags
@@ -908,7 +915,7 @@ Command Dup Tags
 		Logs the total size of all duplicate files found. This size is
 		the sum of the sizes of all files considered duplicates.
 
-		<size> - The total size of duplicate files in gigabytes (uint64).
+		<size> - The total size of duplicate files in gigabytes (uint).
 
 	=summary:exit:<status>
 		Logs the overall exit status of the command. The `status` is one of
@@ -1001,19 +1008,19 @@ Command Smart And Probe Tags
 		attributes. The AFR is calculated using the maximum rate
 		reported by specific SMART attributes (5, 187, 188, 197, 198).
 
-		<afr_value> - The computed Annual Failure Rate (double).
+		<afr_value> - The computed Annual Failure Rate (float).
 		<afr_prob> - The probability of one or more failures in the
-			next year (double).
+			next year (float).
 
 	=attr:<device_file>:<disk_name>[/<split_index>]:size:<size_bytes>
 		Logs the size of the disk.
 
-		<size_bytes> - The disk size in bytes (uint64).
+		<size_bytes> - The disk size in bytes (uint).
 
 	=attr:<device_file>:<disk_name>[/<split_index>]:error:<error_count>
 		Logs the total error count.
 
-		<error_count> - The total error count (uint64).
+		<error_count> - The total error count (uint).
 
 	=attr:<device_file>:<disk_name>[/<split_index>]:rotationrate:<rate>
 		Logs the disk's rotation rate.
@@ -1031,15 +1038,15 @@ Command Smart And Probe Tags
 		`Device could not be opened`, or `SMART status check 
 		returned 'DISK FAILING'`.
 
-		<flags_decimal> - The raw flags value (uint64, decimal).
-		<flags_hex> - The raw flags value (uint64, hexadecimal).
+		<flags_decimal> - The raw flags value (uint, decimal).
+		<flags_hex> - The raw flags value (uint, hexadecimal).
 
 	=attr:<device_file>:<disk_name>[/<split_index>]:<id>:<value_decimal>:<value_hex>
 		Logs the raw value of any assigned SMART attribute.
 
 		<id> - The SMART attribute ID (uint).
-		<value_decimal> - The raw attribute value (uint64, decimal).
-		<value_hex> - The raw attribute value (uint64, hexadecimal).
+		<value_decimal> - The raw attribute value (uint, decimal).
+		<value_hex> - The raw attribute value (uint, hexadecimal).
 
 	=attr:<device_file>:<disk_name>[/<split_index>]:power:active
 		Logs that the device was confirmed to be in an active power 
@@ -1064,7 +1071,7 @@ Command Smart And Probe Tags
 		Comparing this number at different times, you can detect if the
 		disk was used during that time.
 
-		<access_number> - Total number of accesses (int64).
+		<access_number> - Total number of accesses (uint).
 
     Summary
 	Tags logging the overall failure probabilities for the array.
@@ -1074,9 +1081,9 @@ Command Smart And Probe Tags
 		(sum of individual disk AFRs) and the probability of at least
 		one disk failure in the next year.
 
-		<array_afr> - The sum of AFRs of all disks in the array (double).
+		<array_afr> - The sum of AFRs of all disks in the array (float).
 		<array_prob> - The probability of at least one disk failure in
-		the next year (double).
+		the next year (float).
 
 Device Status Tags
 	These tags log the lifecycle of hardware interactions and external
@@ -1109,7 +1116,7 @@ Device Status Tags
 		exit code that was not explicitly recognized as a valid state. 
 
 		<exit_code> - The integer exit status returned by the 
-			process.
+			process (int).
 
 Error Tags
 	These tags report specific errors that occur on data disks during the
diff --git a/doc/snapraid_log.txt b/doc/snapraid_log.txt
index e0522d73..1c30bd29 100644
--- a/doc/snapraid_log.txt
+++ b/doc/snapraid_log.txt
@@ -51,9 +51,16 @@ The following characters are escaped into sequences:
     The carriage return - is escaped to \r.
     The backslash - is escaped to \\.
 
-Some tags are output only when the `--gui` option is used. They provide
-extra verbose state and runtime progress only useful for a GUI
-interface.
+Some tags are output only when the `--gui` or `--gui-verbose` option
+is used. They provide extra verbose state and runtime progress only
+useful for a GUI interface.
+
+Integer values are marked as `uint` when they are unsigned and as `int`
+when they are signed. However, for practical purposes you can treat
+all of them as signed integers.
+All integer values should be assumed to be 64 bits wide, regardless
+of the signed/unsigned marker.
+Floating point values are marked as `float`.
 
 
 2 CONFIGURATION TAGS
@@ -103,7 +110,7 @@ These tags report the memory usage and global configuration.
 
     autosave:<bytes>
         If the autosave feature is enabled, and after how many bytes
-        (uint64). This specifies the interval for content file saving.
+        (uint). This specifies the interval for content file saving.
 
     filter:<pattern>
         All the active filters with their patterns. These patterns
@@ -140,7 +147,7 @@ These tags report the information stored in the content file.
     <uuid> - The UUID of the disk containing the path as stored
         in the content file.
     <path> - The path (escaped).
-    <size> - The size of the parity file (uint64).
+    <size> - The size of the parity file (uint).
 
     content_data:<disk_name>:<uuid>
         The data disk as stored in the content file.
@@ -153,8 +160,8 @@ These tags report the information stored in the content file.
         The size of disk and parity as stored in the content file.
 
     <disk_name> - Name of the data or parity disk.
-    <size> - The size of the data in the disk or parity (uint64).
-    <free_size> - The free size in the disk or parity (uint64).
+    <size> - The size of the data in the disk or parity (uint).
+    <free_size> - The free size in the disk or parity (uint).
 
     content_info:<kind>:<counter>
         The counters in the content file.
@@ -171,7 +178,7 @@ These tags report the information stored in the content file.
         The version of SnapRAID run.
 
     unixtime:<time>
-        The current time in the unix format (uint64), representing
+        The current time in the unix format (uint), representing
         seconds since the epoch.
 
     time:<YYYY-MM-DD HH:MM:SS>
@@ -185,22 +192,22 @@ These tags report the information stored in the content file.
         executable run.
 
     memory:used:<bytes>
-        The total memory currently used by the application in bytes (uint64).
+        The total memory currently used by the application in bytes (uint).
 
     memory:block:<bytes>
-        Size of the internal `snapraid_block` structure in bytes (uint64).
+        Size of the internal `snapraid_block` structure in bytes (uint).
 
     memory:extent:<bytes>
-        Size of the internal `snapraid_extent` structure in bytes (uint64).
+        Size of the internal `snapraid_extent` structure in bytes (uint).
 
     memory:file:<bytes>
-        Size of the internal `snapraid_file` structure in bytes (uint64).
+        Size of the internal `snapraid_file` structure in bytes (uint).
 
     memory:link:<bytes>
-        Size of the internal `snapraid_link` structure in bytes (uint64).
+        Size of the internal `snapraid_link` structure in bytes (uint).
 
     memory:dir:<bytes>
-        Size of the internal `snapraid_dir` structure in bytes (uint64).
+        Size of the internal `snapraid_dir` structure in bytes (uint).
 
 
 5 SCAN TAGS
@@ -211,8 +218,9 @@ content file. They are output for every discovered change, and
 `scan:equal` is only output when the `--gui` option is used.
 
     scan:equal:<disk_name>:<path>
-        A file, link, or directory is equal (unchanged) (GUI only).
+        A file, link, or directory is equal (unchanged).
         No action is required for this item.
+        Only with `--gui-verbose`.
 
     <disk_name> - Name of the data disk.
     <path> - Path to the file/link/dir relative to the disk mount
@@ -316,7 +324,7 @@ Only produced when `--gui` option is used.
 
     <blockidx> - Current block index position processed (uint).
     <blockdone> - Number of blocks processed (uint).
-    <sizedone> - Current size processed (uint64).
+    <sizedone> - Current size processed (uint).
     <perc> - Completion percentage (uint).
     <eta> - Estimated time to completion in seconds (uint).
     <speed_mbs> - Data processing speed in MB/s (uint).
@@ -394,7 +402,7 @@ disk access.
         In case of split parity, the parity name is followed
         by `/N` to indicate the split index, where N starts
         from 0. The `/0` is always omitted.
-    <device> - The unique device ID (uint64).
+    <device> - The unique device ID (uint).
     <temp> - The current temperature read from the disk in degrees
         Celsius.
 
@@ -410,7 +418,7 @@ disk access.
         so far for a specific disk, used for fitting the heating model.
         Only monotone increasing temperatures are included in the history.
 
-    <device> - The unique device ID (uint64).
+    <device> - The unique device ID (uint).
     <count> - The total number of collected data points (uint).
     <data_points> - A comma-separated list of temperature/time pairs.
         Each pair is formatted as <temp>/<time_offset>.
@@ -425,14 +433,14 @@ disk access.
         The model is: T(t) = T_steady - (T_steady - T_0) e^(-kt),
         where T_0 is the initial temperature.
 
-    <device> - The unique device ID (uint64).
-    <k_heat> - The heating rate constant, k (double).
-    <t_ambient> - The ambient temperature, T_ambient (double).
-    <t_steady> - The estimated steady-state temperature, T_steady (double),
+    <device> - The unique device ID (uint).
+    <k_heat> - The heating rate constant, k (float).
+    <t_ambient> - The ambient temperature, T_ambient (float).
+    <t_steady> - The estimated steady-state temperature, T_steady (float),
         which is the maximum expected temperature of the disk.
-    <rmse> - Root Mean Square Error of the fit (double).
-    <r_squared> - Coefficient of determination (R^2) of the fit (double).
-    <max_error> - Maximum absolute error of the fit (double).
+    <rmse> - Root Mean Square Error of the fit (float).
+    <r_squared> - Coefficient of determination (R^2) of the fit (float).
+    <max_error> - Maximum absolute error of the fit (float).
 
     thermal:spindown
         Indicates that the thermal alarm limit has been reached, and
@@ -476,7 +484,7 @@ and overall state.
         This determines the maximum size of data that can be added.
     summary:file_count:<uint>
         Total number of files in the array.
-    summary:file_block_count:<uint64>
+    summary:file_block_count:<uint>
         Total number of data blocks used by files.
     summary:fragmented_file_count:<uint>
         Total number of fragmented files, meaning files whose blocks
@@ -487,11 +495,11 @@ and overall state.
     summary:zerosubsecond_file_count:<uint>
         Total number of files with a zero sub-second timestamp. This
         can occur on certain filesystems and may affect change detection.
-    summary:file_size:<uint64>
+    summary:file_size:<uint>
         Total size of all files in bytes.
-    summary:parity_size:<uint64>
+    summary:parity_size:<uint>
         Total size of allocated parity blocks in bytes.
-    summary:parity_size_max:<uint64>
+    summary:parity_size_max:<uint>
         Maximum possible parity size (allocated + min free) in bytes.
         This is the effective maximum protection size.
     summary:hash:<name>
@@ -501,12 +509,12 @@ and overall state.
     summary:best_hash:<name>
         The best hash algorithm for optimal performance based on
         system capabilities.
-    summary:total_wasted:<uint64>
+    summary:total_wasted:<uint>
         Total wasted space (space on data disks exceeding parity
         capacity) in bytes.
-    summary:total_used:<uint64>
+    summary:total_used:<uint>
         Total used space by data files in bytes.
-    summary:total_free:<uint64>
+    summary:total_free:<uint>
         Total free space (usable by data) in bytes, limited by parity
         capacity.
     summary:total_use_percent:<uint>
@@ -554,7 +562,7 @@ is the disk name.
         Number of excess fragments on the disk.
     summary:disk_zerosubsecond_file_count:<name>:<uint>
         Number of files with zero sub-second timestamp on the disk.
-    summary:disk_file_size:<name>:<uint64>
+    summary:disk_file_size:<name>:<uint>
         Total size of files on the disk in bytes.
     summary:disk_block_allocated:<name>:<uint>
         Highest block index used on the disk + 1.
@@ -571,12 +579,12 @@ is the disk name.
         This is the logical limit imposed by the parity files.
     summary:disk_block_max:<name>:<uint>
         Maximum usable blocks (minimum of `..._by_space` and `..._by_parity`).
-    summary:disk_space_wasted:<name>:<int64>
+    summary:disk_space_wasted:<name>:<int>
         Wasted space on the disk in bytes (positive if disk is larger
         than usable parity space).
-    summary:disk_used:<name>:<uint64>
+    summary:disk_used:<name>:<uint>
         Used space on the disk in bytes.
-    summary:disk_free:<name>:<uint64>
+    summary:disk_free:<name>:<uint>
         Free usable space on the disk in bytes, limited by `disk_block_max`.
     summary:disk_use_percent:<name>:<uint>
         Disk use percentage relative to `disk_block_max`.
@@ -860,12 +868,12 @@ the listing operation.
     <disk_name> - The configured name of the disk.
     <subpath> - The path of the file relative to the disk's root
         (escaped).
-    <size> - The size of the file in bytes (uint64).
+    <size> - The size of the file in bytes (uint).
     <mtime_sec> - The file's modification time in seconds since the
-        Epoch (int64).
+        Epoch (int).
     <mtime_nsec> - The file's modification time nanosecond component
         (uint).
-    <inode> - The file's inode number (int64).
+    <inode> - The file's inode number (uint).
 
     link_<type>:<disk_name>:<subpath>:<linkto>
         Logs details for a link found on a disk. The `<type>` component
@@ -890,7 +898,7 @@ These tags log final statistics about the entire listing operation.
     summary:file_size:<size>
         Logs the total size of all regular files processed.
 
-    <size> - The cumulative size of all files (uint64, bytes).
+    <size> - The cumulative size of all files (uint, bytes).
 
     summary:link_count:<count>
         Logs the total number of links processed (hardlinks, symlinks,
@@ -928,7 +936,7 @@ whole file is used to determine duplicates.
         of `<file_path1>`.
     <file_path2> - The path of the previously processed duplicate file
         relative to its disk's mount point (escaped).
-    <size> - The size of the duplicate file in bytes (uint64). This
+    <size> - The size of the duplicate file in bytes (uint). This
         size corresponds to the file `<file_path2>`.
 
 ---- 12.0.2 Summary Tags ----
@@ -944,7 +952,7 @@ These tags provide a final summary of the duplicate finding process.
         Logs the total size of all duplicate files found. This size is
         the sum of the sizes of all files considered duplicates.
 
-    <size> - The total size of duplicate files in gigabytes (uint64).
+    <size> - The total size of duplicate files in gigabytes (uint).
 
     summary:exit:<status>
         Logs the overall exit status of the command. The `status` is one of
@@ -1046,19 +1054,19 @@ Tags logging specific disk identification and attribute values.
         attributes. The AFR is calculated using the maximum rate
         reported by specific SMART attributes (5, 187, 188, 197, 198).
 
-    <afr_value> - The computed Annual Failure Rate (double).
+    <afr_value> - The computed Annual Failure Rate (float).
     <afr_prob> - The probability of one or more failures in the
-        next year (double).
+        next year (float).
 
     attr:<device_file>:<disk_name>[/<split_index>]:size:<size_bytes>
         Logs the size of the disk.
 
-    <size_bytes> - The disk size in bytes (uint64).
+    <size_bytes> - The disk size in bytes (uint).
 
     attr:<device_file>:<disk_name>[/<split_index>]:error:<error_count>
         Logs the total error count.
 
-    <error_count> - The total error count (uint64).
+    <error_count> - The total error count (uint).
 
     attr:<device_file>:<disk_name>[/<split_index>]:rotationrate:<rate>
         Logs the disk's rotation rate.
@@ -1076,15 +1084,15 @@ Tags logging specific disk identification and attribute values.
         `Device could not be opened`, or `SMART status check
         returned 'DISK FAILING'`.
 
-    <flags_decimal> - The raw flags value (uint64, decimal).
-    <flags_hex> - The raw flags value (uint64, hexadecimal).
+    <flags_decimal> - The raw flags value (uint, decimal).
+    <flags_hex> - The raw flags value (uint, hexadecimal).
 
     attr:<device_file>:<disk_name>[/<split_index>]:<id>:<value_decimal>:<value_hex>
         Logs the raw value of any assigned SMART attribute.
 
     <id> - The SMART attribute ID (uint).
-    <value_decimal> - The raw attribute value (uint64, decimal).
-    <value_hex> - The raw attribute value (uint64, hexadecimal).
+    <value_decimal> - The raw attribute value (uint, decimal).
+    <value_hex> - The raw attribute value (uint, hexadecimal).
 
     attr:<device_file>:<disk_name>[/<split_index>]:power:active
         Logs that the device was confirmed to be in an active power
@@ -1109,7 +1117,7 @@ Tags logging specific disk identification and attribute values.
         Comparing this number at different times, you can detect if the
         disk was used during that time.
 
-    <access_number> - Total number of accesses (int64).
+    <access_number> - Total number of accesses (uint).
 
 ---- 15.0.2 Summary ----
 Tags logging the overall failure probabilities for the array.
@@ -1119,9 +1127,9 @@ Tags logging the overall failure probabilities for the array.
         (sum of individual disk AFRs) and the probability of at least
         one disk failure in the next year.
 
-    <array_afr> - The sum of AFRs of all disks in the array (double).
+    <array_afr> - The sum of AFRs of all disks in the array (float).
     <array_prob> - The probability of at least one disk failure in
-    the next year (double).
+    the next year (float).
 
 
 16 DEVICE STATUS TAGS
@@ -1157,7 +1165,7 @@ command execution with the `smartctl` command.
         exit code that was not explicitly recognized as a valid state.
 
     <exit_code> - The integer exit status returned by the
-        process.
+        process (int).
 
 
 17 ERROR TAGS