Custom color options in themes...the transistions for brand themes are awful so I never use them. Come on Adobe, you have to change this in order for professionals to be able to use this app. The color choices you provide in your themes are childish and marketing is all about branded content and using your own voice/artist design. You are forcing us to use your handful of terrible colors if we want to use Spark. So...until you fix this, we are all going to go make videos elsewhere.