I was fixing the keys to have the color names like in 1..4.7, rather than key1, key2, etc.
Then I noticed the color of the key does not match the color of the door. Should we either have the door color determine the key color or the other way around?

if look loogically, than yes - color key = color door :)

I would say the door color should determine.

I am not good with textures, so I will let @RadioactiveStud or @Eternaldoom do this.

what do you think they should be called? there are 2 teal doors and 2 purple doors.

We could compromise and make colored keyholes in the doors, (Red, Yellow, etc.).

Nah, I have an idea for key names/textures