Discourse forums use a combination of Markdown…
https://commonmark.org/help/
and HTML even. I did start writing a forum guide months ago but I got side-tracked with other things and actually never got much into the “editor” side of thing in the guide…
[HOW-TO] Use This Forum Effectively
@omnitrio began a test thread around the same time (this is roughly the period immediately following Crate’s move to the current Discourse forum software) and him and I both used it as kind of a learning tool…
🔥 My Test Topic (Nothing Interesting)
The further down you go the more interesting it gets. It served its purpose.
You can do it via HTML:
Red Yellow Blue Green
^Happens like so:
<font color='red'>Red</font> <font color='yellow'>Yellow</font> <font color='blue'>Blue</font> <font color='green'>Green</font>
…or bbcode:
Red Yellow Blue Green
^Happens like so:
[color=red]Red[/color] [color=yellow]Yellow[/color] [color=blue]Blue[/color] [color=green]Green[/color]
Here is a color table for color names you can use:
http://www.farb-tabelle.de/en/table-of-color.htm
Unfortunately, this is the way it must be done in Discourse.