darktable-org/darktable — pull request #190 by TurboGit (2013-03-04 09:04:11+00:00)
Title: Add way to customize the panel labels.

All is said in the subject. With the following ~/.config/darktable/darktable.gtkrc I'm able to change the color of the module label. The default color is not changed.

include "/opt/darktable/share/darktable/darktable.gtkrc"
style "clearlooks-header-panel-label"
{
fg[NORMAL] = "#8E9FC3"
}
widget "*.panel_label" style "clearlooks-header-panel-label"

I think this can go safely into master.