update icon_button_editor #498
update icon_button_editor #498

UManPychron/pychron,UManPychron/pychron,USGSDenverPychron/pychron,USGSDenverPychron/pychron,USGSDenverPychron/pychron,NMGRL/pychron,NMGRL/pychron,UManPychron/pychron,NMGRL/pychron,USGSDenverPychron/pychron,NMGRL/pychron,UManPychron/pychron