wal -R -l doesn't work

[holmescharles]

My understanding is that if I use wal (e.g., wal -i SOME_IMAGE) to generate a colorscheme and then I call wal -R -l, it should regenerate the colorscheme but with light colors. This doesn't happen.
If I run wal -l -i SOME_IMAGE, generating a light color scheme, and then try to run wal -R, I would expect the theme to switch to dark colors, but this doesn't happen.

Problem:

• As far as I can tell, "-R" does nothing.

Is this a bug or do I misunderstand how "-R" works?