On behalf of the Blender developers, thank you for all your excellent submissions. I have now attempted to pick 7 themes for inclusion.
I started with the top 20 voted submissions. From here I took the most popular ones and grouped them with themes that looked very similar. I then took those are ordered them from bright to dark to ensure we get a good spread.
Here’s the preliminary list of picks, ordered from bright to dark:
White
Super bright theme, for certain environments this can make sense.
Fresh Snow
Platinum
Similar to: Breeze
XSI
Pro3 (needs a new name)
Nice medium grey
Alternatives: Blender Medium, Modo, Maya, Awesome Theme
Odyssey
Alternatives: Dark Blue, Godot
Dark Minimal
Alternatives: Blender Pro, Greetooth, Yello