Simplified code

[radarhere]

I think this change simplifies the code. Feel free to disagree.

[wiredfool]

I don't like this, while it does remove a duplicated bit of code, it obscures what's happening.

In my opinion,

• Modes are essentially enums that happen to be strings. Doing string.replace is kind of weird on an enum.
• It reduces greppability. It's nice to be able to grep the code and find everywhere La is referenced.

If really want to do something to remove the duplicate code, perhaps a dict with a mapping of {'LA': 'La', 'RGBA':'RGBa'} would be appropriate.

[radarhere]

I've pushed a commit to use the mapping option, and in two other locations as well.