Add a property to allow widgets highlight with neutral color
Task related : Figure out a good UI for the "show which settings have been changed" feature https://phabricator.kde.org/T13008
Part of the aforementioned feature, this patch introduces a new property to allow to highlight some widgets when we want to draw user's attention on specific widgets.
Widgets highlighted, show how it looks on a checkbox, a spinbox and a combobox
More screen of the feature :
No widgets highlighted, settings are different from default value
Enabled highlight settings which have been changed
Slider item without highlight :
Edited by Cyril Rossi