Color Picker in Generate-> Calendar extension

Please introduce a color picker inside the extension as choosing a color and pasting its hex code is really unintuitive and in general, a really bad user experience. Please fix this and if possible, also allow Live Preview.

Inkscape Version and Operating System:

Inkscape Version: 1.1 (1:1.1+202105261517+inkscape@ce6663b3)
Operating System: Linux Mint 20

This is how it looks currently:

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information