In TWIF 45 I learned the existence of openScale and I wanted to try it. Unfortunately I didn’t have the Download button in F-Droid. So I enabled to see incompatible versions and I managed to see something, but instead of the Download button I see Downgrade! But I don’t recall of having ever installed it before. I factory resetted my phone few months ago and didn’t restore any backup.
And even if I try downgrading it it shows a popup about this version being signed with a different key.
How should I install it? thanks