Need some help in theming

[Schnuffel2008]

Hi,

first of all I want to say thank you for this great piece of software. I am using OPNsense for a while now and I am very happy with it.
Maybe someone that is familiar with theming can help me. I am starting to do my own version of theme for OPNsense. Since I love the dark theme of AdGuard Home I am trying to build a theme that will use the style of this product.
I think I am on a good way but I have some problems. Attached you will find a screenshot that will show the problem. I've tried everything but I can't change the color neither of the badge nor of the background of the Destinations field. I am a little bit frustrated since I can't find any solution for this..
Since some of the dark themes like vicuna changed the color, there must be a solution. Can someone please help me...
Another problem is in the section System, Configuration, History. There is a black text in the text box with the header "Configuration diff..." I haven't found any solution to change this. Since all of the dark themes use this black color, I don't know if it is even possible at all.
The most challenging thing seems to be the themin of the colours of the traffic graphs. Can you give me some advice where I can find the information how to change this.
Thank you very much for any help and excuse my poor English

PS: Meanwhile i found the solution for my first problem theming the Destinations field with the help of the issues of the other dark themes. Sorry that I haven't seen this before. Maybe there is some more information there that I was missing, so I will have a closer look here first. But I will left the posting open till I found a solution for the other questions...