[Question] Change App Icons Transparency

hey guys,
I wanted to change my home screen to black and white. So all the apps backgrounds should be transparent but the logo should be white (In whatsapp think that the Speech bubble and phone stay white while the rest is transparent (I have a certain background).

I tried the nocinoci widget but that doesn't seperate the icons and backgrounds.

Greetings

(Q) How do you get no transparency on COS12.1 Lockscreen?

Hello everyone i am on the latest COS12.1 Stock ROM and i am rooted with twrp installed. I was wondering if anyone knew how to get the lockscreen wallpaper to not be transparent. If you still don't know what i mean is that i want the lockscreen wallpaper to be as bright as the home screen wallpaper.

Thx in advance:)