I don't have a full understanding of how my color scheme is interacting with the term
setting in vim and this is impeding my ability to get it to display correctly in neovim.
In my .vimrc file, correct behavior of the color scheme in question requires setting
set term=xterm
set t_Co=256
Omitting either of those settings results in incorrect display of the color scheme:
correct
incorrect
different incorrect
The scheme looks like this:
set background=dark
hi clear
if exists("syntax_on")
syntax reset
endif
let g:colors_name="impact3"
if exists("g:impact_transbg")
hi Normal ctermfg=255 ctermbg=none
hi NonText ctermfg=DarkGray ctermbg=none
hi Statement ctermfg=Blue ctermbg=none
hi Comment ctermfg=DarkGray ctermbg=none cterm=bold term=bold
hi Constant ctermfg=173 ctermbg=none
hi Identifier ctermfg=Cyan ctermbg=none
hi Type ctermfg=DarkGreen ctermbg=none
hi Folded ctermfg=0 ctermbg=235 cterm=underline term=none
hi Special ctermfg=Blue ctermbg=none
hi PreProc ctermfg=LightGray ctermbg=none cterm=bold term=bold
hi Scrollbar ctermfg=Blue ctermbg=none
hi Cursor ctermfg=white ctermbg=none
hi ErrorMsg ctermfg=Red ctermbg=none cterm=bold term=bold
hi WarningMsg ctermfg=Yellow ctermbg=none
hi VertSplit ctermfg=0 ctermbg=0
hi Directory ctermfg=Cyan ctermbg=DarkBlue
hi Visual ctermfg=White ctermbg=Gray cterm=underline term=none
hi Title ctermfg=255 ctermbg=Blue
hi String ctermfg=Blue ctermbg=none
hi StatusLine term=bold cterm=bold,underline ctermfg=White ctermbg=Black
hi StatusLineNC term=bold cterm=bold,underline ctermfg=Gray ctermbg=Black
hi LineNr term=bold cterm=bold ctermfg=2 ctermbg=None
hi Search ctermfg=Black ctermbg=2
hi TabLine ctermfg=0 ctermbg=DarkGray
hi TabLineFill ctermfg=DarkGray ctermbg=DarkGray
else
hi Normal ctermfg=White ctermbg=Black
hi NonText ctermfg=DarkGray ctermbg=Black
hi Statement ctermfg=Blue ctermbg=Black
hi Comment ctermfg=DarkGray ctermbg=Black cterm=bold term=bold
hi Constant ctermfg=DarkCyan ctermbg=Black
hi Identifier ctermfg=Cyan ctermbg=Black
hi Type ctermfg=DarkGreen ctermbg=Black
hi Folded ctermfg=DarkGreen ctermbg=Black cterm=underline term=none
hi Special ctermfg=Blue ctermbg=Black
hi PreProc ctermfg=LightGray ctermbg=Black cterm=bold term=bold
hi Scrollbar ctermfg=Blue ctermbg=Black
hi Cursor ctermfg=white ctermbg=Black
hi ErrorMsg ctermfg=Red ctermbg=Black cterm=bold term=bold
hi WarningMsg ctermfg=Yellow ctermbg=Black
hi VertSplit ctermfg=White ctermbg=Black
hi Directory ctermfg=Cyan ctermbg=DarkBlue
hi Visual ctermfg=White ctermbg=DarkGray cterm=underline term=none
hi Title ctermfg=White ctermbg=DarkBlue
hi StatusLine term=bold cterm=bold,underline ctermfg=White ctermbg=Black
hi StatusLineNC term=bold cterm=bold,underline ctermfg=Gray ctermbg=Black
hi LineNr term=bold cterm=bold ctermfg=White ctermbg=Black
endif
In neovim, term
cannot be set. I tried invoking neovim with a manually set $TERM like so:
TERM=xterm nvim
This produced the correct display of colors in regular vim (i.e. equivalent to setting term in .vimrc), but in neovim it looks like this:
Why is the combination of set term=xterm
and set t_Co=256
necessary to produce the correct display of this color scheme in vim and why does the equivalent combination of settings produce a different result in neovim?
Edit:
The default is $TERM=xterm256-color
, which for some reason has to be overridden to xterm
in regular vim to make the color display correctly. With the environment variable at the 256 default, neovim looks like this:
This is identical to regular vim with xterm256-color
, but not as intended. My goal is to understand why the xterm hack is necessary/working in vim, and why it doesn't look the same in neovim.
Note that many of the colors appear correctly with the above term env variable setting, notable exceptions being line numbers and background. I suspect that the way the colors are specified in this specific color scheme may be involved.
set term=xterm
.