It appears I may also have
LCLWidgetType:=customdrawn
LCLWidgetType:=fpGUI
It really needs o be documented how to use the above.
Through much searching I found I could use
IDEMacro - LCLWidgetType:=customdrawn
in "project settings" and "application overrides and defines"
However, I can't see anywhere on how I select which subtype to draw. Preferably I would like to have my apps look somewhat similar on two platforms - and custom styled. But seeing this may not be possible I would like to test my options - maybe e.g. KDE.
The most important thing for me is that all standard controls work on Windows and Mac