I added a rather simple custom CSS for more clearly seeing the text

[SiggeVibes]

Also, in OBS I use the Twitch chat overlay as a source, alongside the window source I use, (So in my case I do not use desktop view, like ever) so it shows on the stream. Well, what I want to say with this is that in OBS I then use blend mode “Screen” and then my CSS don't show like this but the darkened background I added for myself is removed by this feature. Pretty neat, actually.
Anyway, that might be beside the point, but I added this first just in case anybody would wonder.

Here's the very basic and easy custom CSS, that's the best a total code-noob like myself could come up with, but hey, it works, for seeing the text more clearly:

#chat_box {
text-shadow: 2px 2px 0 #000, 2px 2px 4px #000;
letter-spacing: 1px;
}

.chat_line {
background-color:rgb(0,0,0);opacity:0.9;
color: #fff;
font-size: 16px!important;
font-weight: bold;
}

.chat_line .nick {

}

.message { display: inline !important; }
.highlight { background-color: rgba(255,255,0,0.5) !important; }

Here's what it looks like when I took a screenshot right now:

Also, then of course what I have to live with is what yellow border that Windows itself put around a window that's recorded, but it's mostly fine, but I would have preferred it not being like that. Well, as far as my research goes, this thing does not go away, so I just have to live with it. It's fine, I guess. This setup is so great. I love it. This is such a great application. I want to thank you so much for making it!