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annotate runtime/colors/README.txt @ 28887:0e207ddd939d v8.2.4966

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patch 8.2.4966: MS-Windows GUI: mouse event test gets extra event Commit: https://github.com/vim/vim/commit/e5162e76c0a8bd71fbfb0840a8c0014788d8808b Author: Bram Moolenaar <Bram@vim.org> Date: Mon May 16 16:41:35 2022 +0100 patch 8.2.4966: MS-Windows GUI: mouse event test gets extra event Problem: MS-Windows GUI: mouse event test gets extra event. Solution: Ignore one move event.
author Bram Moolenaar <Bram@vim.org>
date Mon, 16 May 2022 17:45:03 +0200
parents 82244cfc4694
children 57c9377b9c62
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1 README.txt for color scheme files
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2
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3 These files are used for the ":colorscheme" command. They appear in the
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4 "Edit/Color Scheme" menu in the GUI.
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6
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7 Hints for writing a color scheme file:
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8
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9 There are two basic ways to define a color scheme:
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10
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11 1. Define a new Normal color and set the 'background' option accordingly.
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12
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13 set background={light or dark}
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14 highlight clear
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15 highlight Normal ...
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16 ...
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17
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18 2. Use the default Normal color and automatically adjust to the value of
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19 'background'.
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21 highlight clear Normal
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22 set background&
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23 highlight clear
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24 if &background == "light"
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25 highlight Error ...
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26 ...
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27 else
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28 highlight Error ...
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29 ...
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30 endif
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31
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32 You can use ":highlight clear" to reset everything to the defaults, and then
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33 change the groups that you want differently. This will also work for groups
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34 that are added in later versions of Vim.
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35 Note that ":highlight clear" uses the value of 'background', thus set it
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36 before this command.
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37 Some attributes (e.g., bold) might be set in the defaults that you want
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38 removed in your color scheme. Use something like "gui=NONE" to remove the
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39 attributes.
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40
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41 In case you want to set 'background' depending on the colorscheme selected,
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42 this autocmd might be useful:
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43
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44 autocmd SourcePre */colors/blue_sky.vim set background=dark
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46 Replace "blue_sky" with the name of the colorscheme.
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47
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48 In case you want to tweak a colorscheme after it was loaded, check out the
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49 ColorScheme autocommand event.
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50
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51 To clean up just before loading another colorscheme, use the ColorSchemePre
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52 autocommand event. For example:
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53
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54 let g:term_ansi_colors = ...
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55 augroup MyColorscheme
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56 au!
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57 au ColorSchemePre * unlet g:term_ansi_colors
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58 au ColorSchemePre * au! MyColorscheme
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59 augroup END
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61 To customize a colorscheme use another name, e.g. "~/.vim/colors/mine.vim",
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62 and use ":runtime" to load the original colorscheme:
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64 " load the "evening" colorscheme
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65 runtime colors/evening.vim
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66 " change the color of statements
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67 hi Statement ctermfg=Blue guifg=Blue
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68
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69 To see which highlight group is used where, see ":help highlight-groups" and
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70 ":help group-name".
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72 You can use ":highlight" to find out the current colors. Exception: the
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73 ctermfg and ctermbg values are numbers, which are only valid for the current
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74 terminal. Use the color names instead for better portability. See
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75 ":help cterm-colors".
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76
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77 The default color settings can be found in the source file src/syntax.c.
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78 Search for "highlight_init".
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80 If you think you have a color scheme that is good enough to be used by others,
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81 please check the following items:
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82
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83 - Source the $VIMRUNTIME/colors/tools/check_colors.vim script to check for
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84 common mistakes.
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85
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86 - Does it work in a color terminal as well as in the GUI? Is it consistent?
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87
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88 - Is "g:colors_name" set to a meaningful value? In case of doubt you can do
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89 it this way:
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91 let g:colors_name = expand('<sfile>:t:r')
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92
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93 - Is 'background' either used or appropriately set to "light" or "dark"?
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94
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95 - Try setting 'hlsearch' and searching for a pattern, is the match easy to
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96 spot?
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97
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98 - Split a window with ":split" and ":vsplit". Are the status lines and
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99 vertical separators clearly visible?
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100
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101 - In the GUI, is it easy to find the cursor, also in a file with lots of
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102 syntax highlighting?
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103
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104 - In general, test your color scheme against as many filetypes, Vim features,
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105 environments, etc. as possible.
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106
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107 - Do not use hard coded escape sequences, these will not work in other
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108 terminals. Always use #RRGGBB for the GUI.
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109
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110 - When targetting 8-16 colors terminals, don't count on "darkblue" to be blue
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111 and dark, or on "2" to be even vaguely reddish. Names are more portable
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112 than numbers, though.
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113
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114 - When targetting 256 colors terminals, prefer colors 16-255 to colors 0-15
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115 for the same reason.
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116
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117 - Typographic attributes (bold, italic, underline, reverse, etc.) are not
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118 universally supported. Don't count on any of them.
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119
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120 - Is "g:terminal_ansi_colors" set to a list of 16 #RRGGBB values?
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121
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122 - Try to keep your color scheme simple by avoiding unnecessary logic and
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123 refraining from adding options. The best color scheme is one that only
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124 requires:
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125
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126 colorscheme foobar
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127
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128 The color schemes distributed with Vim are built with lifepillar/colortemplate
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129 (https://github.com/lifepillar/vim-colortemplate). It is therefore highly
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130 recommended.
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131
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132 If you would like your color scheme to be distributed with Vim, make sure
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133 that:
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134
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135 - it satisfies the guidelines above,
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136 - it was made with colortemplate,
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137
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138 and join us at vim/colorschemes: (https://github.com/vim/colorschemes).