If you don’t like the color shown, change the var(--text-muted) part to any valid variable or color (hex, rgb, etc.) of your choice. The first bit (.HyperMD-footnote) is the class for the footnote text, the second (.cm-hmd-footnote) targets the part in brackets.
Also, I notice a lot of theme authors are overly liberal with the use if important flags, so you may need to add that if the above doesn’t work:
.HyperMD-footnote, .cm-hmd-footnote {color:var(--text-muted) !important;} Try not to use the important flag unless it’s absolutely necessary. It makes future styling difficult
@sebaseba - That’s what the variables are for. The default themes each come with their own set of definitions, so the var(--text-muted) part will change with the theme.
If that’s still not faint enough, you can try var(--text-faint), or find another variable that works for you. There are a lot of them included you can try. There’s a forum post listing them all but I can’t find it ATM. If you need it, I’m sure a search will eventually locate it.
For example, in the default light theme, --text-faint will give: