Fix text not being updated after having choosed a color from the button.
Use input masks instead of QRegExpValidator.
Rework QColorListModel around list of color names as QList<QColor> is not a possible type yet in Qt Designer.
Rework QColorComboBox due to changes to QColorListModel and try to reuse existing signals names.
Add QColorListView class/plugin based on QColorListModel.
Add newwidgets.