BuzzKill Notifications Manager question

Before I try to figure out how to pay for BuzzKill while using LineageOS + microG, can anybody using this app (which people rave about) tell me if it's capable of drawing a notification dot (preferably with different colors for different types of notifications) on the screen when the screen is already powered on??

I do not have an AMOLED display, and I am looking for a notification LED replacement that (ironically, I guess) only shows when the screen is already on, either actively using the phone or the lock screen.

My actual problem is that I have ADHD and my brain has done the thing where notifications have become Part Of The Environment and I no longer see them or remember to check them.

All the notification LED replacement apps I've found so far are for AMOLED / always-on display, neither of which I have. Plus most of them are trashy and filled with ads.