Add scrollbarpage and scrollbarwidth settings to colorlistbox

Signed-off-by: Jean-Marc.Levecque <jmarc.levecque@bbox.fr>
Redo selection of predefined colors using colorlistbox

Signed-off-by: Jean-Marc.Levecque <jmarc.levecque@bbox.fr>
Repare conflict between origin and local changes

Signed-off-by: Jean-Marc.Levecque <jmarc.levecque@bbox.fr>