Control functionality in the darkroom view and associated modules.


scroll down to increase mask parameters
By default, scrolling your mouse up increases the value of the relevant shape parameters in drawn masks. Set this preference to reverse the behavior (default off).
middle mouse button zooms to 200%
When enabled, clicking the middle mouse button on the image canvas causes the zoom level to toggle between fit, 100% and 200%. When disabled, the middle mouse button toggles between fit and 100%. In the latter case, you can use Ctrl+middle-click to access the 200% zoom level (default on).
pattern for the image information line
Set the information to be displayed in the image information line. You can use any variables in the variables section as well as $(NL) for a new line. You can also include formatting (bold, italic, colors etc).
position of the image information line
Choose the darkroom panel in which the image information line is displayed. Choose between “top left” “top right” “top center” “bottom” and “hidden” (default “bottom”).
border around image in darkroom mode
Display the center image in darkroom mode with an outside border of the given number of pixels (default 20).
show scrollbars for center view
Choose whether to show scrollbars in the center view of the darkroom (default off).
reduce resolution of preview image
Reduce the resolution of the navigation preview image (choose from “original”, “1/2”, “1/3” or “1/4” size). This may improve the speed of the rendering but take care as it can also hinder accurate color picking and masking (default “original”).
show loading screen between images
Show gray loading screen when navigating between images in the darkroom. Switch this option off to just show a simple toast message and leave the previous image in place until the next image is loaded. Note that switching this option off can be very useful to quickly compare duplicate images, however, there might be issues with long loading times (leading you to think the next image has already loaded) and you may observe visual artifacts while the next image is loading (default on).


display of individual color channels
Control how individual color channels are displayed when activated in the parametric masks feature. You can choose between “false color” and “gray scale” (default “false color”).
hide built-in presets for processing modules
If enabled, only user-defined presets will be shown in the presets menu for processing modules – built-in presets will be hidden (default off).
show the guides widget in modules UI
Enable this to show the local guides & overlays interface directly within the UI of the modules that support it (default on).
expand a single processing module at a time
Control how processing modules are expanded in the darkroom. If this option is enabled, expanding a module by clicking collapses any currently expanded module. If you want to expand a module without collapsing the others you can do so with Shift+click. Disabling this option inverts the meaning of click and Shift+click (default on).
only collapse modules in current group
When choosing to expand a single processing module at a time (using the logic defined in the previous setting), only collapse other modules that appear in the current visible group. Disable this option to ensure that modules in non-visible groups are also collapsed (default on).
expand the module when it is activated, and collapse it when disabled
Select this option for the darkroom to automatically expand or collapse processing modules when they are enabled or disabled. (default off)
scroll processing modules to the top when expanded
With this option enabled processing modules are scrolled to the top of the right-hand panel when expanded. (default on)
show right-side buttons in processing module headers
Choose whether to show the four buttons (mask indicator, multi-instance menu, reset, presets menu) on the right-hand-side of the module header for processing modules. These buttons will always appear when the mouse is over the module. At other times they will be shown or hidden according to this preference selection:
  • always: always show all buttons
  • active: only show the buttons when the mouse is over the module
  • dim: buttons are dimmed when mouse is not over the module
  • auto: hide the buttons when the panel is narrow
  • fade: fade out all buttons when the panel narrows
  • fit: hide all the buttons if the module name doesn’t fit
  • smooth: fade out all buttons in one header simultaneously
  • glide: gradually hide individual buttons as needed
(default always)
show mask indicator in module headers
If enabled, an icon will be shown in the header of any processing modules that have a mask applied (default on).
prompt for name on addition of new instance
If enabled, when creating a new instance of a processing module, a prompt will be immediately displayed allowing you to set a name for the new instance (default off).
automatically update module name
Automatically update the name (label) on processing modules if the current parameters of the module match those of a saved preset. The module name will only be updated if it hasn’t already been manually amended for the current image. It will be set either to the module name from which the preset was made (if the module name was manually adjusted before the preset was created) or to the name of the preset itself (default on).