I like a lot the Mindashq theme from Reddit and some days ago I wanted to use it for my new subsaidit about paintings.
I don't know a lot about CSS, so my only chance to get a beautiful theme is to copy-paste the CSS from a more talented guy. So I just copy the stylesheet from reddit and pasted it here on SaidIt (more specifically, I copy-paste the code from r/Palemoon but it's the same thing).
The result was encouraging, but a lot of work left to get something as beautiful as on Reddit : day/night modes were broken, the SaidIt link wasn't at his place, some buttons were misplaced, etc...Just try yourself to copy-paste the code, and you'll see and the little glitches.
So, using s/paintings as a test, I worked to clean the CSS code and adapt it to Saidit. It was hard, it take me some days but with the help of Mozilla, I was finally able to make Mindashq available for Saidit in a good state. You can see it in action on the exemple subsaidit I create expressly for it and of course on my paintings sub.
I call it Mindashq for Saidit 1.0 because it is the first working version on SaidIt but on Reddit it's called Mindashq 1.8.3. It's the same thing.
If you enjoy this theme, use it ! I'll be happy if some people use it for their own subsaidit. Do not hesitate to ask me if see something not working here on SaidIt, I will try to fix it !