✨ Support for color input

**Is your feature request related to a problem? Please describe.**
Color inputs currently looks like a textfield, which is an inconvenience.

**Describe the solution you'd like**
A good looking, styled element for color inputs, that looks good across all themes

Start by reviewing the existing form-control styles and theme definitions, then inspect how color inputs are currently rendered. Compare the result across the framework's themes and verify that the color input has a consistent, polished appearance rather than the current textfield styling.

Written by the indexing model from the issue text.