FR Projucer: Generate [UserPaintCustomArguments/] for background colour

Since a recent update (Juce 5?) Projucer now generates user customization sections in the paint calls like these:

//[UserPaintCustomArguments] Customize the painting arguments here..

I would find these extremely useful to apply my own user customizable colours, however currently no such section is generated for the background colour and therefore I can’t use them. Could you add one for the fillAll() command at the top of each Projucer generated paint call as well?