Use current accent colour to set ColorDialog object in colour picker

This commit initialises the state of the accent colour picker using the current accent colour, this way the user can adjust it more precisely.


(cherry picked from commit 43cee1029d)

kcms/colors/package/contents/ui/main.qml

@@ -239,6 +239,7 @@ KCM.GridViewKCM {
                     title: i18n("Choose custom accent color")
                     // User must either choose a colour or cancel the operation before doing something else
                     modality: Qt.ApplicationModal
+                    color: kcm.accentColor
                     onAccepted: {
                         kcm.accentColor = colorDialog.color
                     }