Have you checked if the opacity so slider is all the was to the left in the colour chooser? There sould be one somewhere.
Edit: i see in the windows version the opacity slider is missing... are you using the windows version?
Edit: i see in the windows version the opacity slider is missing... are you using the windows version?
Samsung Galaxy Tab S7 FE Android 12
Samsung Note Pro 12.2 LineageOS 14.1
Huawei Media Pad M3 lite Android 7
Samsung Note Pro 12.2 LineageOS 14.1
Huawei Media Pad M3 lite Android 7