Color settings when no image is selected (either up or down).
List
The list of all settings with their red/green/blue value.
Settings can be rearranged up or down. Note however that keys image index are NOT
rearranged. Not either when deleting a setting.
When pressing the New button, the color dialog opens.
Note that the setting selected is also the default color when creating a new key.
Properties
These properties are unique for all color settings. To fine tune margins, images should be used insteed.
Gradient: Paint the key with a gradient color from the one selected to a whiter color. Margins: Select the bound rectangle of the image where text and pictogram can be displayed.