support no classDefine when extending a class
move buttons style in Ui.ButtonGraphic
update buttons styles to Ui.ButtonGraphic
provide style control for Ui.Selectionable background
create Ui.ActionButton for the Ui.ContextBar buttons and provide background style the for context bar
provide style control for Ui.Dialog and move buttons in Ui.DialogButtonsBox to allow style control on the buttons bar
correct bus in the style merging and for measure in collapsed elements
correct a bug preventing using the menu button because of the background
allow setFill(undefined) to use the style property
rename the color style property to background
update compact version