Omni Mode channel colors are not exact

[desiremusic]

In omni mode, channel colors are not correctly displayed on the pads. The brown color displayed white, purple is white as well.
Colors are selected using random color function in the channel settings.
See attached pictures.

[MaddyGuthridge]

This is due to limitations in my algorithm for finding the closest colour. I'll investigate using a different search method, which may improve the issue, but other methods may be far too slow to process. I think the main issue is that I haven't added names or hex values for all of the controller's available colours yet. It works far better for bright colours currently. I'll address this in an update soon.

[MaddyGuthridge]

Will fix in v2.1.