Use theme.CreateDialogButton() for dialog button styling defaults
Use theme.CreateDialogButton() for dialog button styling defaults

- Issue MatterHackers/MCCentral#4774
Inconsistent dialog button sizes

larsbrubaker/MatterControl,jlewin/MatterControl,mmoening/MatterControl,jlewin/MatterControl,larsbrubaker/MatterControl,unlimitedbacon/MatterControl,jlewin/MatterControl,mmoening/MatterControl,unlimitedbacon/MatterControl,larsbrubaker/MatterControl,jlewin/MatterControl,unlimitedbacon/MatterControl,mmoening/MatterControl,larsbrubaker/MatterControl,unlimitedbacon/MatterControl