More Color Options

[Jamyth]

There should be a function to convert hex into rgb, then for each r g and b, add a value to get a lighter and darker color for the main color.

then it will support more color I think

[usamamoinakhter]

You can pass backgroundColor & shadowColor to style prop for that. PRs are welcomed if you want to come up with a better solution to this.

[Jamyth]

I just wonder would it be better if the light and dark shadow is something close to the theme color XD