WIP: fix a issue when user configure a theme with low contrast
This MR fix a issue when user configure a theme with low contrast The default color is wrong and the toogle of the dark theme is switched.
Pointed by Ramon Miranda over Grafica Libre team
Steps to reproduce: Use a dark theme, select a low contrast, close and open inkscape. Result theme broken.
(cherry picked from commit 1c35b443)
Edited by Jabier Arraiza