Allows you to change Houdini’s color scheme.

Pops open a list of color schemes which have been online posted by users, and allows you download them.

Reloads all color schemes, and adds or removes and schemes that may have been added or deleted to the UI search path. This is only required if you have manually copied a color scheme into the UI path, or have modified one of the color scheme files with a text editor. Downloaded schemes are automatically added.

Allows you to adjust the gamma, brightness, contrast, and saturation of Houdini. Only the gadgets in the user interface are affected; viewports and other areas where color is part of the scene is not affected.

Resets the gamma, brightness, contrast and saturation customizations to the default Houdini settings. Pressing 'Esc' will also reset the colors, in case the button cannot be seen.