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* vim-patch:partial 2d8ed0203aed
Update runtime files.
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Skip:
runtime/doc/map.txt
runtime/doc/syntax.txt
runtime/doc/usr_51.txt
runtime/doc/usr_52.txt
runtime/syntax/help.vim
runtime/syntax/vim.vim
Co-authored-by: Sean Dewar <seandewar@users.noreply.github.com>
146 lines
4.6 KiB
Plaintext
146 lines
4.6 KiB
Plaintext
README.txt for color scheme files
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These files are used for the `:colorscheme` command. They appear in the
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"Edit/Color Scheme" menu in the GUI.
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The colorschemes were updated for the Vim 9 release. If you don't like the
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changes you can find the old ones here:
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https://github.com/vim/colorschemes/tree/master/legacy_colors
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Hints for writing a color scheme file:
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There are two basic ways to define a color scheme:
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1. Define a new Normal color and set the 'background' option accordingly. >
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set background={light or dark}
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highlight clear
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highlight Normal ...
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...
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2. Use the default Normal color and automatically adjust to the value of
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'background'. >
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highlight clear Normal
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set background&
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highlight clear
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if &background == "light"
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highlight Error ...
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...
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else
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highlight Error ...
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...
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endif
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You can use `:highlight clear` to reset everything to the defaults, and then
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change the groups that you want differently. This will also work for groups
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that are added in later versions of Vim.
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Note that `:highlight clear` uses the value of 'background', thus set it
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before this command.
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Some attributes (e.g., bold) might be set in the defaults that you want
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removed in your color scheme. Use something like "gui=NONE" to remove the
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attributes.
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In case you want to set 'background' depending on the colorscheme selected,
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this autocmd might be useful: >
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autocmd SourcePre */colors/blue_sky.vim set background=dark
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Replace "blue_sky" with the name of the colorscheme.
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In case you want to tweak a colorscheme after it was loaded, check out the
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ColorScheme autocommand event.
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To clean up just before loading another colorscheme, use the ColorSchemePre
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autocommand event. For example: >
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let g:term_ansi_colors = ...
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augroup MyColorscheme
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au!
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au ColorSchemePre * unlet g:term_ansi_colors
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au ColorSchemePre * au! MyColorscheme
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augroup END
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To customize a colorscheme use another name, e.g. "~/.vim/colors/mine.vim",
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and use ":runtime" to load the original colorscheme: >
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" load the "evening" colorscheme
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runtime colors/evening.vim
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" change the color of statements
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hi Statement ctermfg=Blue guifg=Blue
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To see which highlight group is used where, see `:help highlight-groups` and
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`:help group-name` .
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You can use ":highlight" to find out the current colors. Exception: the
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ctermfg and ctermbg values are numbers, which are only valid for the current
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terminal. Use the color names instead for better portability. See
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`:help cterm-colors` .
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The default color settings can be found in the source file
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"src/nvim/highlight_group.c". Search for "highlight_init".
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If you think you have a color scheme that is good enough to be used by others,
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please check the following items:
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- Source the $VIMRUNTIME/colors/tools/check_colors.vim script to check for
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common mistakes.
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- Does it work in a color terminal as well as in the GUI? Is it consistent?
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- Is "g:colors_name" set to a meaningful value? In case of doubt you can do
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it this way: >
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let g:colors_name = expand('<sfile>:t:r')
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- Is 'background' either used or appropriately set to "light" or "dark"?
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- Try setting 'hlsearch' and searching for a pattern, is the match easy to
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spot?
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- Split a window with ":split" and ":vsplit". Are the status lines and
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vertical separators clearly visible?
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- In the GUI, is it easy to find the cursor, also in a file with lots of
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syntax highlighting?
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- In general, test your color scheme against as many filetypes, Vim features,
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environments, etc. as possible.
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- Do not use hard coded escape sequences, these will not work in other
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terminals. Always use #RRGGBB for the GUI.
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- When targetting 8-16 colors terminals, don't count on "darkblue" to be blue
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and dark, or on "2" to be even vaguely reddish. Names are more portable
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than numbers, though.
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- When targetting 256 colors terminals, prefer colors 16-255 to colors 0-15
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for the same reason.
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- Typographic attributes (bold, italic, underline, reverse, etc.) are not
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universally supported. Don't count on any of them.
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- Is "g:terminal_ansi_colors" set to a list of 16 #RRGGBB values?
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- Try to keep your color scheme simple by avoiding unnecessary logic and
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refraining from adding options. The best color scheme is one that only
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requires: >
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colorscheme foobar
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The color schemes distributed with Vim are built with lifepillar/colortemplate
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(https://github.com/lifepillar/vim-colortemplate). It is therefore highly
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recommended.
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If you would like your color scheme to be distributed with Vim, make sure
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that:
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- it satisfies the guidelines above,
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- it was made with colortemplate,
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and join us at vim/colorschemes: (https://github.com/vim/colorschemes).
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vim: set ft=help :
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