Vim color scheme

• Black background.
• Based on other color schemes. The starting point was "torte".
• Mostly, uses the same 256 colors in both GVim and terminal emulators.
• Specific rules for TreeSitter, LSP, html, mail, diff, wdiff, vim help and showmarks plugin.

This color scheme should not be enabled if the terminal emulator does not support 256 colors, such as the Linux console. Hence, if you only use graphical terminal emulators with support for 256 colors, you may put in your vimrc:

colorscheme southernlights

or in your init.lua:

vim.cmd.colorscheme('southernlights')

But if sometimes you use a less colorful terminal, you should run southernlights conditionally. Example for vimrc:

if $TERM != 'linux'
    colorscheme southernlights
endif

and a different and more complete example for init.lua:

if os.getenv('COLORTERM') == "truecolor" then
    vim.o.mouse = 'a'
    vim.cmd('colorscheme southernlights')
else
    -- Avoid the letter q being printed in the Linux Console
    vim.o.guicursor = ''
end

• To see at once how some file types are highlighted, open the file test_colorscheme/openFiles.vim and, in Normal mode, type :so %.

• To see what attributes your terminal support, do ./test_terminal.py.