No, I run custom roms. Ditched MIUI because it is still based on Kit Kat.I don't think any theme works on your system only 3rd party apps. It's miui correct? They have different system no themes have included unless they say support MIUI specifically. Which I don't know of any published ones. I only seen one dev working on a theme for MIUI in Substratum but haven't seen him in a few weeks.
Just FYI hope it helps!
I spent some time last night and managed to solve some notifications but this morning, realized notification from another news app popped up still have same issue.
Sent from my MI PAD using Tapatalk