How can I change the number of bullets?

in Writer, I have specific bullets defined in a customized list style and want to change their color. How can I do this in Writer?

Note: I don’t want to use the predefined “Graphics”

I appreciate your help!

Styles and Formatting → List Styles → List x → Options tab:

You can select a "Character Style" for each level (or level 1–10).

Styles and Formatting → Character Styles → "Bullets" → right-click (context) → New…

Create a character style (e.g.) "Bullets_red":

Font Effects tab → Font color (e.g.) "Light red".

Select the new character style "Bullets_red" in "List Styles → List x → Options tab → Character Style" (here: only level 2).

Thank you very much for this excellent explanations. Step by step I can understand how the various styles are linked to each. The system appears to be great; I just need to fully understand it… a bit more to study and maybe one or the other question…