documentation of darktablerc

darktablerc

this files gives an overview over the default settings of the darktable configuration found in ~/.config/darktable/darktablerc. you might find some extra values in that configuration file that get generated by the code at runtime, this overview only has the default values that are specified during compile time. some details (like allowed range and factors when shown in the preferences dialog) are not shown here to not clutter the list too much. please have a look at the corresponding source file for up-to-date information.

key	type	default	description
ask_before_copy	bool	true	ask before copying images to new film roll folder
	always ask the user before any image file is copied.
ask_before_delete	bool	true	ask before erasing images from disk
	always ask the user before any image file is deleted.
ask_before_move	bool	true	ask before moving images from film roll folder
	always ask the user before any image file is moved.
ask_before_remove	bool	true	ask before removing images from database
	always ask the user before any image is removed from DB.
bauhaus/scale	float	1.4	widget scale
	scaling factor for bauhaus widgets, will affect font size
brush_smoothing	enum low medium high	medium	smoothing of brush strokes
	sets level for smoothing of brush strokes. stronger smoothing leads to less nodes and easier editing but with lower control of accuracy.
cache_compression	enum off low quality (fast) high quality (slow)	off	compression of thumbnail images
	off - no compression in memory, JPG on disk. low quality - DXT1 (fast). high quality - DXT1, same memory as low quality variant but slower.
cache_memory	int64	(1024 * 1024 * 512)	memory in megabytes to use for mipmap cache
	this controls how much memory is going to be used for thumbnails and other buffers (needs a restart).
compress_xmp_tags	enum never always only large entries	only large entries	store xmp tags in compressed format
	entries in xmp tags can get rather large and may exceed the available space to store the history stack in output files. this option allows xmp tags to be compressed and save space.
darkroom/ui/overexposed/colorscheme	int	1

darkroom/ui/overexposed/lower	float	2.0

darkroom/ui/overexposed/upper	float	98.0

darkroom/ui/single_module	bool	true	expand a single darkroom module at a time
	this option toggles the behavior of shift clicking in darkroom mode
database	string	library.db	database location
	filename relative to ~/.config/darktable or starting with a slash (needs a restart).
database_cache_quality	int	89	JPEG quality of on-disk thumbnails
	affects only the thumbnail cache used for quick startup.
host_memory_limit	int	1500	host memory limit (in MB) for tiling
	this variable controls the maximum amount of memory (in MB) a module may use during image processing. lower values will force memory hungry modules to process image with increasing number of tiles. setting this to 0 will omit any limit. values below 500 will be treated as 500 (needs a restart).
lighttable/ui/expose_statuses	bool	false	always show thumbnail overlays
	show overlays (rating stars, "edited" mark, etc) for all thumbnails in file manager, not only hovered one
lighttable/ui/single_module	bool	false	expand a single lighttable module at a time
	this option toggles the behavior of shift clicking in lighttable mode
maximum_number_tiles	int	10000	assumed maximum sane number of tiles
	if during tiling this number is exceeded darktable assumes that tiling is not possible and falls back to untiled processing - with all system memory limits taking full effect. in case you want to process huge images you may want to increase this number.
metadata/resolution	int	300

never_use_embedded_thumb	bool	false	don't use embedded preview JPEG but half-size raw
	check this option to not use the embedded JPEG from the raw file but process the raw data. this is slower but gives you color managed thumbnails.
opencl	bool	true	activate OpenCL support
	if found, use OpenCL runtime on your system for improved processing speed. can be switched on and off at any time.
opencl_async_pixelpipe	bool	false	run OpenCL pixelpipe asynchronously
	if set to TRUE OpenCL pixelpipe will not be synchronized on a per-module basis. this can improve pixelpipe latency. however, potential OpenCL errors would be detected late; in such a case the complete pixelpipe needs to be reprocessed instead of only a single module. export pixelpipe will always be run synchronously.
opencl_avoid_atomics	bool	false	do not run OpenCL kernels which require atomic operations
	if set to TRUE darktable will not use OpenCL kernels which contain atomic operations (example bilateral). pixelpipe processing will be done on CPU for the affected modules. useful if your OpenCL implementation freezes/crashes on atomics or if they are processed with a bad performance.
opencl_checksum	string		checksum representing the setup of opencl devices on this computer
	darktable re-checks the performance benchmarks of your system in case your setup has changed, which is indicated by a change versus the stored checksum in this config variable; darktable de-activates opencl if the GPU benchmark lies below the one of the CPU.
opencl_device_priority	string	/!0,//	priority of OpenCL devices for each pixelpipe type
	defines priorities on how (multiple) OpenCL devices are allocated to the different types of pixelpipe (full, preview, export, thumbnail). for more details visit our usermanual (needs a restart).
opencl_library	string		system library with OpenCL runtime
	OpenCL runtime library is normally detected automatically by darktable. if your OpenCL runtime is at an unusual place and cannot be detected, enter the full pathname here. leave empty for default behavior.
opencl_memory_headroom	int	300	amount of OpenCL memory (in MB) which we assume as being reserved for the driver
	this amount of memory (in MB) will be substracted from total GPU memory in order to calculate the available OpenCL memory. too low values will lead to out-of-memory situations in OpenCL processing. too high values will lead to unnecessary tiling (needs a restart).
opencl_memory_requirement	int	768	minmum amount of GPU memory (MB) required to activate OpenCL
	OpenCL will only be activated if your graphics card has at least this amount of memory. reducing the value will allow cards with less GPU memory to be used - but at the risk of lower system stability and occasional crashes. values below 200 will be treated as 200.
opencl_micro_nap	int	1000	pause OpenCL processing for this number of microseconds from time to time
	for slow GPUs this gives your graphics driver some time to breathe to do needed screen updates. can be left at zero for fast devices.
opencl_number_event_handles	int	25	the number of OpenCL event handles darktable can use
	a positive non-zero integer defines the number of event handles that darktable may have opened on a device. a value of -1 does not pose any restrictions, bearing the risk of hitting the device's resource limits. a value of zero completely prevents the use of event handles.
opencl_size_roundup	int	16	round OpenCL work group sizes to a multiple of
	in OpenCL processing round width/height of global work groups to a multiple of this value. reasonable values are powers of 2. this parameter can have high impact on OpenCL performance.
opencl_synch_cache	bool	false	copy back OpenCL buffers into pixelpipe cache after each module
	this brings pixelpipe cache and OpenCL buffers in synch after each module. on slow GPUs this might improve speed as it avoids reprocessing the whole pixelpipe on every parameter change. on fast GPUs the additional memory transfer overhead will slow down OpenCL considerably.
opencl_use_cpu_devices	bool	false	whether to make use of CPU OpenCL devices
	typically darktable's hand-optimized CPU code is much faster than any OpenCL-on-CPU code; therefore CPUs are excluded from being used as OpenCL devices by default. can be changed by setting this configuration option to TRUE (needs a restart).
opencl_use_pinned_memory	bool	false	whether to use pinned memory transfer during tiling
	during tiling huge amounts of memory need to be transfered between host and device. for some OpenCL implementations direct memory transfers give a drastic performance penalty. this can often be avoided by using indirect transfers via pinned memory. other devices have more efficient direct memory transfer implementations. AMD seems to belong to the first group, nvidia to the second.
panel_width	int	300	width of the side panels in pixels
	(needs a restart)
parallel_export	int	1	export multiple images in parallel
	set this variable to num_threads if you want multithreaded export to process multiple images at a time. be warned: every thread will need at the very least 1GB of memory. setting this to 1 switches on per-image parallelization.
plugins/capture/camera/import/jobcode	string	noname	jobcode of import job

plugins/capture/jobcode	string	capture job	name of capture job

plugins/capture/mode	int	0	capture view mode

plugins/capture/storage/basedirectory	string	$(PICTURES_FOLDER)/darktable	path of storage for captured images

plugins/capture/storage/namepattern	string	$(YEAR)$(MONTH)$(DAY)_$(SEQUENCE).$(FILE_EXTENSION)	rename pattern for captured images

plugins/capture/storage/subpath	string	$(YEAR)$(MONTH)$(DAY)_$(JOBCODE)	subpath pattern in storage for captured images

plugins/collection/descending	bool	false

plugins/collection/film_id	int	1

plugins/collection/filter_flags	int	3

plugins/collection/query_flags	int	3

plugins/collection/rating	int	1

plugins/collection/rating_comparator	int	3

plugins/collection/sort	int	0

plugins/darkroom/active	string

plugins/darkroom/atrous/expanded	bool	false

plugins/darkroom/atrous/visible	bool	false

plugins/darkroom/basecurve/expanded	bool	false

plugins/darkroom/basecurve/visible	bool	true

plugins/darkroom/bilat/expanded	bool	false

plugins/darkroom/bilat/visible	bool	true

plugins/darkroom/bilateral/expanded	bool	false

plugins/darkroom/bilateral/visible	bool	false

plugins/darkroom/bloom/expanded	bool	false

plugins/darkroom/bloom/visible	bool	false

plugins/darkroom/borders/expanded	bool	false

plugins/darkroom/borders/visible	bool	false

plugins/darkroom/cacorrect/expanded	bool	false

plugins/darkroom/cacorrect/visible	bool	false

plugins/darkroom/channelmixer/expanded	bool	false

plugins/darkroom/channelmixer/visible	bool	false

plugins/darkroom/clahe/expanded	bool	false

plugins/darkroom/clahe/visible	bool	false

plugins/darkroom/clipping/expanded	bool	false

plugins/darkroom/clipping/guide	int	0	last chosen guide style

plugins/darkroom/clipping/ratio_d	int	0	last chosen aspect ratio denominator

plugins/darkroom/clipping/ratio_n	int	0	last chosen aspect ratio numerator

plugins/darkroom/clipping/visible	bool	true

plugins/darkroom/colisa/expanded	bool	true

plugins/darkroom/colisa/visible	bool	true

plugins/darkroom/colorcontrast/expanded	bool	false

plugins/darkroom/colorcontrast/visible	bool	false

plugins/darkroom/colorcorrection/expanded	bool	false

plugins/darkroom/colorcorrection/visible	bool	true

plugins/darkroom/colorin/expanded	bool	false

plugins/darkroom/colorin/visible	bool	true

plugins/darkroom/colorize/expanded	bool	false

plugins/darkroom/colorize/visible	bool	false

plugins/darkroom/colorout/expanded	bool	false

plugins/darkroom/colorout/visible	bool	true

plugins/darkroom/colortransfer/expanded	bool	false

plugins/darkroom/colortransfer/visible	bool	false

plugins/darkroom/colorzones/expanded	bool	false

plugins/darkroom/colorzones/visible	bool	false

plugins/darkroom/demosaic/expanded	bool	false

plugins/darkroom/demosaic/quality	enum always bilinear (fast) at most PPG (reasonable) full (possibly slow)	at most PPG (reasonable)	demosaicing for zoomed out darkroom mode
	interpolation when not viewing 1:1 in darkroom mode: bilinear is fastest, but not as sharp. middle ground is using PPG + interpolation modes specified below, full will use exactly the settings for full-size export. X-Trans sensors use VNG rather than PPG as middle ground.
plugins/darkroom/demosaic/visible	bool	true

plugins/darkroom/equalizer/expanded	bool	false

plugins/darkroom/equalizer/visible	bool	false

plugins/darkroom/exposure/expanded	bool	false

plugins/darkroom/exposure/visible	bool	true

plugins/darkroom/flip/expanded	bool	false

plugins/darkroom/flip/visible	bool	true

plugins/darkroom/gamma/expanded	bool	false

plugins/darkroom/gamma/visible	bool	false

plugins/darkroom/globaltonemap/expanded	bool	false

plugins/darkroom/globaltonemap/visible	bool	false

plugins/darkroom/graduatednd/expanded	bool	false

plugins/darkroom/graduatednd/visible	bool	true

plugins/darkroom/grain/expanded	bool	false

plugins/darkroom/grain/visible	bool	true

plugins/darkroom/groups	int	2

plugins/darkroom/highlights/expanded	bool	false

plugins/darkroom/highlights/visible	bool	false

plugins/darkroom/highpass/expanded	bool	false

plugins/darkroom/highpass/visible	bool	false

plugins/darkroom/histogram/mode	enum linear logarithmic waveform	logarithmic

plugins/darkroom/histogram/show_blue	bool	true

plugins/darkroom/histogram/show_green	bool	true

plugins/darkroom/histogram/show_red	bool	true

plugins/darkroom/hotpixels/expanded	bool	false

plugins/darkroom/hotpixels/visible	bool	false

plugins/darkroom/invert/expanded	bool	false

plugins/darkroom/invert/visible	bool	false

plugins/darkroom/lens/expanded	bool	false

plugins/darkroom/lens/visible	bool	true

plugins/darkroom/levels/expanded	bool	false

plugins/darkroom/levels/visible	bool	true

plugins/darkroom/lowlight/expanded	bool	false

plugins/darkroom/lowlight/visible	bool	false

plugins/darkroom/lowpass/expanded	bool	false

plugins/darkroom/lowpass/visible	bool	false

plugins/darkroom/masks/brush/border	float	0.05

plugins/darkroom/masks/brush/density	float	1.0

plugins/darkroom/masks/brush/hardness	float	0.66

plugins/darkroom/masks/circle/border	float	0.05

plugins/darkroom/masks/circle/size	float	0.05

plugins/darkroom/masks/ellipse/border	float	0.05

plugins/darkroom/masks/ellipse/radius_a	float	0.05

plugins/darkroom/masks/ellipse/radius_b	float	0.03535

plugins/darkroom/masks/ellipse/rotation	float	90.0

plugins/darkroom/masks/gradient/compression	float	0.5

plugins/darkroom/masks/gradient/rotation	float	0.0

plugins/darkroom/masks/gradient/steepness	float	0.0

plugins/darkroom/masks/path/border	float	0.05

plugins/darkroom/monochrome/expanded	bool	false

plugins/darkroom/monochrome/visible	bool	true

plugins/darkroom/nlmeans/expanded	bool	false

plugins/darkroom/nlmeans/visible	bool	false

plugins/darkroom/overexposed/expanded	bool	false

plugins/darkroom/overexposed/visible	bool	true

plugins/darkroom/profile_gamma/expanded	bool	false

plugins/darkroom/profile_gamma/visible	bool	false

plugins/darkroom/rawdenoise/expanded	bool	false

plugins/darkroom/rawdenoise/visible	bool	false

plugins/darkroom/relight/expanded	bool	false

plugins/darkroom/relight/visible	bool	false

plugins/darkroom/shadhi/expanded	bool	false

plugins/darkroom/shadhi/visible	bool	true

plugins/darkroom/sharpen/expanded	bool	false

plugins/darkroom/sharpen/visible	bool	true

plugins/darkroom/soften/expanded	bool	false

plugins/darkroom/soften/visible	bool	false

plugins/darkroom/splittoning/expanded	bool	false

plugins/darkroom/splittoning/visible	bool	false

plugins/darkroom/spots/brush_border	float	0.05

plugins/darkroom/spots/brush_density	float	1.0

plugins/darkroom/spots/brush_hardness	float	0.66

plugins/darkroom/spots/circle_border	float	0.02

plugins/darkroom/spots/circle_size	float	0.02

plugins/darkroom/spots/ellipse_border	float	0.02

plugins/darkroom/spots/ellipse_radius_a	float	0.02

plugins/darkroom/spots/ellipse_radius_b	float	0.01414

plugins/darkroom/spots/ellipse_rotation	float	90.0

plugins/darkroom/spots/expanded	bool	false

plugins/darkroom/spots/path_border	float	0.05

plugins/darkroom/spots/visible	bool	false

plugins/darkroom/tagging/visible	bool	true

plugins/darkroom/temperature/expanded	bool	false

plugins/darkroom/temperature/visible	bool	true

plugins/darkroom/tonecurve/expanded	bool	false

plugins/darkroom/tonecurve/visible	bool	true

plugins/darkroom/tonemap/expanded	bool	false

plugins/darkroom/tonemap/visible	bool	false

plugins/darkroom/velvia/expanded	bool	false

plugins/darkroom/velvia/visible	bool	false

plugins/darkroom/vibrance/expanded	bool	false

plugins/darkroom/vibrance/visible	bool	false

plugins/darkroom/vignette/expanded	bool	false

plugins/darkroom/vignette/visible	bool	true

plugins/darkroom/watermark/expanded	bool	false

plugins/darkroom/watermark/visible	bool	false

plugins/darkroom/zonesystem/expanded	bool	false

plugins/darkroom/zonesystem/visible	bool	false

plugins/imageio/format/jpeg/quality	int	95

plugins/imageio/format/png/bpp	int	8

plugins/imageio/format/tiff/bpp	int	8

plugins/imageio/format/tiff/compress	int	2

plugins/imageio/storage/disk/file_directory	string	$(FILE_FOLDER)/darktable_exported/$(FILE_NAME)

plugins/imageio/storage/email/client	string		client to use, this overrides detection of default client.

plugins/imageio/storage/gallery/file_directory	string	$(HOME)/darktable_gallery/img_$(SEQUENCE)

plugins/imageio/storage/gallery/title	string	darktable gallery

plugins/lighttable/audio_player	string	aplay	executable for playing audio files
	this external program is used to play audio files some cameras record to keep notes for images
plugins/lighttable/camera/expanded	bool	false

plugins/lighttable/collect/expanded	bool	false

plugins/lighttable/collect/item0	int	0

plugins/lighttable/collect/item1	int	0

plugins/lighttable/collect/item2	int	0

plugins/lighttable/collect/item3	int	0

plugins/lighttable/collect/item4	int	0

plugins/lighttable/collect/item5	int	0

plugins/lighttable/collect/item6	int	0

plugins/lighttable/collect/item7	int	0

plugins/lighttable/collect/item8	int	0

plugins/lighttable/collect/item9	int	0

plugins/lighttable/collect/mode0	int	0

plugins/lighttable/collect/mode1	int	0

plugins/lighttable/collect/mode2	int	0

plugins/lighttable/collect/mode3	int	0

plugins/lighttable/collect/mode4	int	0

plugins/lighttable/collect/mode5	int	0

plugins/lighttable/collect/mode6	int	0

plugins/lighttable/collect/mode7	int	0

plugins/lighttable/collect/mode8	int	0

plugins/lighttable/collect/mode9	int	0

plugins/lighttable/collect/num_rules	int	0

plugins/lighttable/collect/string0	string

plugins/lighttable/collect/string1	string

plugins/lighttable/collect/string2	string

plugins/lighttable/collect/string3	string

plugins/lighttable/collect/string4	string

plugins/lighttable/collect/string5	string

plugins/lighttable/collect/string6	string

plugins/lighttable/collect/string7	string

plugins/lighttable/collect/string8	string

plugins/lighttable/collect/string9	string

plugins/lighttable/copy_history/expanded	bool	false

plugins/lighttable/copy_history/pastemode	int	0	append or replace history stack if pasted
	0 -- append on top of stack, 1 -- replace it.
plugins/lighttable/draw_custom_metadata	bool	false	overlay txt sidecar over zoomed images
	when there is a txt file next to an image it can be shown as an overlay over zoomed images on the lighttable. the txt file either has to be there at import time or the crawler has to be enabled
plugins/lighttable/draw_group_borders	bool	true	draw borders around grouped images
	draw borders around grouped images when grouping is turned off and the mouse hovers over one of the images of the group
plugins/lighttable/export/expanded	bool	false

plugins/lighttable/export/force_lcms2	bool	false	always try to use LittleCMS 2
	this is significantly slower than the default.
plugins/lighttable/export/format_name	string	jpeg

plugins/lighttable/export/height	int	0	height of the exported image
	height of the exported image, or 0 if no scaling should be done.
plugins/lighttable/export/high_quality_processing	bool	false	do high quality resampling during export
	the image will first be processed in full resolution, and downscaled at the very end. this can result in better quality sometimes, but will always be slower.
plugins/lighttable/export/iccintent	int	-1	ICC rendering intent
	if non-negative, this overrides the per-image output color profile rendering intent on export.
plugins/lighttable/export/iccprofile	string	image	ICC profile to use for export
	this overrides the per-image settings, if not set to `image'.
plugins/lighttable/export/pixel_interpolator	enum bilinear bicubic lanczos2 lanczos3	lanczos3	pixel interpolator
	pixel interpolator used in rotation and lens correction (bilinear, bicubic, lanczos2, lanczos3).
plugins/lighttable/export/storage_name	string	disk

plugins/lighttable/export/style	string

plugins/lighttable/export/width	int	0	width of the exported image
	width of the exported image, or 0 if no scaling should be done.
plugins/lighttable/filmstrip/height	int	120	height of filmstrip
	height of the filmstrip in pixels
plugins/lighttable/filmstrip/visible	bool	true	enable filmstrip
	enable the filmstrip in darkroom, tethering and map modes.
plugins/lighttable/image/expanded	bool	false

plugins/lighttable/images_in_row	int	5	images per row

plugins/lighttable/layout	int	1	lighttable layout mode
	select a layout for the lighttable: 0 - zoomable lighttable or 1 - file manager.
plugins/lighttable/low_quality_thumbnails	bool	false	low quality thumbnails
	if set to true, thumbnails will be processed by first downscaling rather than demosaicing the full image. this can result in much faster processing times and blurrier images, especially when you cropped a lot.
plugins/lighttable/metadata/expanded	bool	false

plugins/lighttable/metadata_view/pretty_location	bool	true	pretty print the image location
	show a more readable representation of the location in the image information module
plugins/lighttable/recentcollect/expanded	bool	false

plugins/lighttable/recentcollect/line0	string

plugins/lighttable/recentcollect/line1	string

plugins/lighttable/recentcollect/line2	string

plugins/lighttable/recentcollect/line3	string

plugins/lighttable/recentcollect/line4	string

plugins/lighttable/recentcollect/line5	string

plugins/lighttable/recentcollect/line6	string

plugins/lighttable/recentcollect/line7	string

plugins/lighttable/recentcollect/line8	string

plugins/lighttable/recentcollect/line9	string

plugins/lighttable/recentcollect/num_items	int	0

plugins/lighttable/select/expanded	bool	false

plugins/lighttable/styles/expanded	bool	false

plugins/lighttable/tagging/ask_before_delete_tag	bool	true	ask before deleting a tag

plugins/lighttable/tagging/expanded	bool	false

plugins/lighttable/thumbnail_height	int	1000	maximum height of image drawing area
	maximum height of the image drawing area in darkroom mode. adjust to your screen\n(needs a restart and will invalidate current thumbnail caches).
plugins/lighttable/thumbnail_width	int	1300	maximum width of image drawing area
	maximum width of the image drawing area in darkroom mode. adjust to your screen\n(needs a restart and will invalidate current thumbnail caches).
plugins/map/filter_images_drawn	bool	FALSE	only draw images on map that are currently collected and filtered
	use the current filter settings to select the geotagged images drawn on the map, i.e. limit the images drawn to the current filmstrip. this limits the number of images drawn and thus reduces the time needed to draw the images.
plugins/map/max_images_drawn	int	100	maximum number of images drawn on map
	the maximum number of geotagged images drawn on the map. increasing this number can slow drawing of the map down.
plugins/map/show_map_osd	bool	true

plugins/pwstorage/pwstorage_backend	enum auto none libsecret kwallet gnome keyring	auto	password storage backend to use
	the storage backend for password storage: auto, none, libsecret, kwallet, gnome keyring
plugins/slideshow/high_quality	bool	true	do high quality processing for slideshow
	same option as for export, but applies to slideshow.
pressure_sensitivity	enum off hardness (relative) hardness (absolute) opacity (relative) opacity (absolute) brush size (relative)	off	pen pressure control for brush masks
	off - pressure reading ignored, hardness/opacity/brush size - pressure reading controls specified attribute, absolute/relative - pressure reading is taken directly as attribute value or multiplied with pre-defined setting.
run_crawler_on_start	bool	false	look for updated xmp files on startup
	check file modification times of all xmp files on startup to check if any got updated in the meantime
screen_dpi_overwrite	float	-1.0	overwrite the screen's dpi setting
	if this value is > 0.0 then it is used as the screen's dpi setting which is used to scale the gui
screen_ppd_overwrite	float	-1.0	overwrite the screen's ppd setting
	if this value is > 0.0 then it is used as the screen's ppd setting which is used for HiDPI support
session/base_directory_pattern	string	$(PICTURES_FOLDER)/Darktable	base directory naming pattern
	part of full import path for an import session
session/filename_pattern	string	$(YEAR)$(MONTH)$(DAY)_$(SEQUENCE).$(FILE_EXTENSION)	file naming pattern
	file naming pattern used for a import session
session/sub_directory_pattern	string	$(YEAR)$(MONTH)$(DAY)_$(JOBCODE)	sub directory naming pattern
	part of full import path for an import session
show_folder_levels	int	1	number of folder levels to show in lists
	the number of folder levels to show in film roll names, starting from the right
singlebuffer_limit	int	16	minimum amount of memory (in MB) for a single buffer in tiling
	if set to a positive, non-zero value this variable defines the minimum amount of memory (in MB) that tiling should take for a single image buffer. has precedence over heuristics based on host_memory_limit (needs a restart).
ui_last/colorpicker_mean	int	0	0: mean, 1: min, 2: max

ui_last/display_profile_source	enum all xatom colord	all	method to use for getting the display profile
	this option allows to force a specific means of getting the current display profile. this is useful when one alternative gives wrong results
ui_last/expander_histogram	int	-1

ui_last/expander_history	int	-1

ui_last/expander_import	int	2

ui_last/expander_metadata	int	0

ui_last/expander_navigation	int	-1

ui_last/expander_snapshots	int	-1

ui_last/fullscreen	bool	false

ui_last/grouping	bool	false	grouping of images
	only show a single image for each set of grouped images in lighttable and filmstrip
ui_last/import_ignore_jpegs	bool	false	ignore JPEG images when importing film rolls
	when having raw+JPEG images together in one directory it makes no sense to import both. with this flag one can ignore all JPEGs found.
ui_last/import_initial_rating	int	1	initial import rating
	initial star rating for all images when importing a filmroll
ui_last/import_last_creator	string		creator to be applied when importing

ui_last/import_last_directory	string		last opened directory.

ui_last/import_last_publisher	string		publisher to be applied when importing

ui_last/import_last_rights	string		rights to be applied when importing

ui_last/import_last_tags	string		comma separated tags to be applied when importing

ui_last/import_recursive	bool	false	recursive directory traversal when importing filmrolls

ui_last/maximized	bool	false

ui_last/panel_bottom	int	0

ui_last/panel_left	int	-1

ui_last/panel_right	int	-1

ui_last/panel_top	int	0

ui_last/view	int	0

ui_last/window_h	int	500

ui_last/window_w	int	900

ui_last/window_x	int	0

ui_last/window_y	int	0

worker_threads	int	2	number of background threads
	this controls for example how many threads are used to create thumbnails during import. the cache will grow to a maximum of twice this number of full resolution image buffers (needs a restart).
write_sidecar_files	bool	true	write sidecar file for each image
	these redundant files can later be re-imported into a different database, preserving your changes to the image.