One thing Sketch did well was give the symbols their own Artboard (which for Figma would be frame) and they have two options to control whether to include background in export and instances.
I have a lot of components that I don’t want any background color on, for my mockups. However, not adding a fill to the main component makes it hard to visualize the dimensions or bounds when working with the main components.
It would really help me if there was a way that I can give all my main components a background fill so I can see them better when working on the component library, but also be transparent when I use the instances on my designs.