How to change text color of article headings / topics

I would like to change the text color of the articles in the overview with the night theme.
Currently the text color seems to be #e6e6e6 which is a bit too bright.

I already tried several things with custom css but since I am rather a beginner with css, I wasnt able to change the font color.

Also, in another thread a solution was posted to alternate the line colors (see below). However, this only seems to work in the light theme.
Can something similar be done in the night theme as well.

Much appreciated.

Alternate line colors for light theme:
div.hl:nth-child(even) {background: #FFF;}
div.hl:nth-child(odd) {background: #F5F5F5;}
div.hl.Unread:nth-child(even) {background: #FFF;}
div.hl.Unread:nth-child(odd) {background: #F5F5F5;}

in general when your rule doesn’t apply you need to use higher specificity, i.e. add more nested selectors so it would get higher priority, i remember posting about it here and it should be easy to google.

Well, I tried that for the night theme, but wasnt able to find the correct value.

I have since moved to the feedly cozy night theme.
Fort his one, I was able to change the headline text color to some greenish with this:

#content-wrap#content-wrap .cdm.expandable:not(.active).Unread .title, #content-wrap#content-wrap .hl.Unread .title {
    color: rgb(43, 178, 76);
}

I was also able to remove the (ugly as hell, since FF does not support webkit) overflow scrollbars on Firefox with this:

div * {
  scrollbar-width: none; /* Firefox */
}