Changing topic shapes' color

Most of my topic shapes are not black but dark grey. There is a slight variation in colour between the earlier ones and the later ones and then some of the later ones are just black. I need them to all be just black as I am adding images with a black background. How do I switch off the colour variation?

Thanks :slight_smile:

2 posts were merged into an existing topic: Color Innacurate/Inconsistent (Hex Code)