typography

Is your feature request related to a problem? Please describe.
I don't think Theme UI should be opinionated on which SVGs should be used for the Radio & CheckBox components

Describe the solution you'd like
Probably an additional prop called customIcon maybe... based on which we could conditionally render the passed SVG icon otherwise we use the default icons?

**Describe alter

Hi,

I never used your lib yet, but very interested to (as I was starting to do a similar thing).
One thing I noticed is that I don't see dark colors (eg: iOS Colors have light & dark values, which are different, same for grey, see https://developer.apple.com/design/human-interface-guidelines/ios/visual-design/color/)

Is there any plan to handle that? Might be a bit breaking change for color

It just doesn't test anything for the cast majority of fuzzer input. While fuzzer does learn the effective paths, let's help it more.

First, for instruction type, change the switch argument to: instruction.operation % NUM_OPERATIONS.

Then just split the available values into the two sets by looking up one integer from fuzzer and use that module size for set1 and the rest for set2.