[Feature]: List of all Color Descriptions that can be used in Template Card

[dafunkydan]

Requirements

• I have updated Mushroom to the latest available version
• I did a search to see if there is a similar issue or if a pull request is open.

Is your feature request related to a problem?

In Template Cards instead of RGB Values, i want to use Color-Descriptions like e.g. icon_color: red.
While this example works, a lot of HTML Colors seem to be unavailable, e.g. darkred doesn't work, the Icon renders black.
I couldn't find a Doc stating which Colors are available.

Describe the solution you'd like

A Link in the Description to, or directly a comprehensive List of available Colors, would be awesome.

Describe alternatives you've considered

RGB Code

Additional context

No response