Invalid command :echo color_name?

[hobo-mts]

Here:

The same, but only for the "lucius" colorscheme (check `:echo
color_name` which should be set by all valid colorschemes):

In my Vim 7.4 with default colorscheme, command :echo color_name prints

E121: Undefined variable: color_name
E15: Invalid expression: color_name

default.vim contains line let colors_name = "default"

[mhinz]

Okay, I changed the whole section to make it a bit clearer.

The default colorscheme is hardcoded in C and does not set colors_name. I should have used just :colo, which outputs default in that case.

Anyway, I removed the bit about colors_name since it's not really important. I also switched from "lucius" to one of the colorscheme shipped with Vim, "desert".

Thanks for bringing this up! ✨