apologies, just woke up when I wrote that hehe.
These functions do not allow for the alpha channel because I never added support for it.
As someone who almost never uses alpha channels it didnt cross my mind.
I need to do some testing when I have time, but i’ll see if i can add the functionality (or a new function) to support alpha channels.
(nudge me in a week if i didnt, because I either forgot or got busy)