1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
|
" twilight256 color scheme file
" Maintainer: Neal Milstein - neal dot milstein at gmail dot com
" Last Change: 2011 Feb 1
"
" This theme copies the colors from the TextMate theme Twilight.
"
" The theme is designed to be used on a black background. I only tested it
" using a 256-color terminal; I do not think it will work on much else (gvim,
" 8-color terminal, etc.).
"
" The functions in this theme that convert hex color codes to the nearest
" xterm-256 color number are from the theme desert2 (desert256), developed by Henry So, Jr.
"
" The colors of this theme are based on the TextMate Twilight theme
" – www.macromates.com
"
" CUSTOM CHANGES:
" 2014.04.14:
" * Manually set "Normal" ctermbg to 235 (or #262626)
" * Set "NonText" and "SpecialKey" to "Comment" colour
"
" 2014.05.23:
" * Set "StatusLineNC" to a dark grey. This way I get a light grey on the
" currently active window and the other windows have darker statuslines.
" Makes it easier to see visually where my cursor is.
"
" 2014.05.25:
" * Set "CursorLine" to be a bit lighter than the background. Previously
" there was no highlighting definition for this and it defaulted to an
" underline.
"
" 2020.04.29:
" * Set "CursorLineNr" to remove the underline. This appeared after
" upgrading to Vim 8.2.
"
" 2020.06.03:
" * Use a lighter grey for comments to increase contrast and make text
" easier to read.
"
" 2023.12.08:
" * Use darker background colours for DiffAdd, DiffChange, and DiffText to
" increase contrast and reduce vibration relative to the foreground
" text. This makes the text with diff highlighting easier to read.
"
set background=dark
if version > 580
" no guarantees for version 5.8 and below, but this makes it stop
" complaining
hi clear
if exists("syntax_on")
syntax reset
endif
endif
let g:colors_name="twilight256"
if has("gui_running") || &t_Co == 88 || &t_Co == 256
" functions {{{
" returns an approximate grey index for the given grey level
fun <SID>grey_number(x)
if &t_Co == 88
if a:x < 23
return 0
elseif a:x < 69
return 1
elseif a:x < 103
return 2
elseif a:x < 127
return 3
elseif a:x < 150
return 4
elseif a:x < 173
return 5
elseif a:x < 196
return 6
elseif a:x < 219
return 7
elseif a:x < 243
return 8
else
return 9
endif
else
if a:x < 14
return 0
else
let l:n = (a:x - 8) / 10
let l:m = (a:x - 8) % 10
if l:m < 5
return l:n
else
return l:n + 1
endif
endif
endif
endfun
" returns the actual grey level represented by the grey index
fun <SID>grey_level(n)
if &t_Co == 88
if a:n == 0
return 0
elseif a:n == 1
return 46
elseif a:n == 2
return 92
elseif a:n == 3
return 115
elseif a:n == 4
return 139
elseif a:n == 5
return 162
elseif a:n == 6
return 185
elseif a:n == 7
return 208
elseif a:n == 8
return 231
else
return 255
endif
else
if a:n == 0
return 0
else
return 8 + (a:n * 10)
endif
endif
endfun
" returns the palette index for the given grey index
fun <SID>grey_color(n)
if &t_Co == 88
if a:n == 0
return 16
elseif a:n == 9
return 79
else
return 79 + a:n
endif
else
if a:n == 0
return 16
elseif a:n == 25
return 231
else
return 231 + a:n
endif
endif
endfun
" returns an approximate color index for the given color level
fun <SID>rgb_number(x)
if &t_Co == 88
if a:x < 69
return 0
elseif a:x < 172
return 1
elseif a:x < 230
return 2
else
return 3
endif
else
if a:x < 75
return 0
else
let l:n = (a:x - 55) / 40
let l:m = (a:x - 55) % 40
if l:m < 20
return l:n
else
return l:n + 1
endif
endif
endif
endfun
" returns the actual color level for the given color index
fun <SID>rgb_level(n)
if &t_Co == 88
if a:n == 0
return 0
elseif a:n == 1
return 139
elseif a:n == 2
return 205
else
return 255
endif
else
if a:n == 0
return 0
else
return 55 + (a:n * 40)
endif
endif
endfun
" returns the palette index for the given R/G/B color indices
fun <SID>rgb_color(x, y, z)
if &t_Co == 88
return 16 + (a:x * 16) + (a:y * 4) + a:z
else
return 16 + (a:x * 36) + (a:y * 6) + a:z
endif
endfun
" returns the palette index to approximate the given R/G/B color levels
fun <SID>color(r, g, b)
" get the closest grey
let l:gx = <SID>grey_number(a:r)
let l:gy = <SID>grey_number(a:g)
let l:gz = <SID>grey_number(a:b)
" get the closest color
let l:x = <SID>rgb_number(a:r)
let l:y = <SID>rgb_number(a:g)
let l:z = <SID>rgb_number(a:b)
if l:gx == l:gy && l:gy == l:gz
" there are two possibilities
let l:dgr = <SID>grey_level(l:gx) - a:r
let l:dgg = <SID>grey_level(l:gy) - a:g
let l:dgb = <SID>grey_level(l:gz) - a:b
let l:dgrey = (l:dgr * l:dgr) + (l:dgg * l:dgg) + (l:dgb * l:dgb)
let l:dr = <SID>rgb_level(l:gx) - a:r
let l:dg = <SID>rgb_level(l:gy) - a:g
let l:db = <SID>rgb_level(l:gz) - a:b
let l:drgb = (l:dr * l:dr) + (l:dg * l:dg) + (l:db * l:db)
if l:dgrey < l:drgb
" use the grey
return <SID>grey_color(l:gx)
else
" use the color
return <SID>rgb_color(l:x, l:y, l:z)
endif
else
" only one possibility
return <SID>rgb_color(l:x, l:y, l:z)
endif
endfun
" returns the palette index to approximate the 'rrggbb' hex string
fun <SID>rgb(rgb)
let l:r = ("0x" . strpart(a:rgb, 0, 2)) + 0
let l:g = ("0x" . strpart(a:rgb, 2, 2)) + 0
let l:b = ("0x" . strpart(a:rgb, 4, 2)) + 0
return <SID>color(l:r, l:g, l:b)
endfun
" sets the highlighting for the given group
fun <SID>X(group, fg, bg, attr)
if a:fg != ""
exec "hi " . a:group . " guifg=#" . a:fg . " ctermfg=" . <SID>rgb(a:fg)
endif
if a:bg != ""
exec "hi " . a:group . " guibg=#" . a:bg . " ctermbg=" . <SID>rgb(a:bg)
endif
if a:attr != ""
exec "hi " . a:group . " gui=" . a:attr . " cterm=" . a:attr
endif
endfun
" }}}
call <SID>X("Normal", "ffffff", "", "")
" Added 2014.04.15: Set background colour to #262626 manually because it
" was displaying as white before. -tw
hi Normal ctermbg=235
" highlight groups
"call <SID>X("Cursor", "708090", "f0e68c", "")
"CursorIM
"Directory
highlight DiffAdd term=bold ctermbg=17 guibg=DarkBlue
highlight DiffChange term=bold ctermbg=53 guibg=DarkMagenta
"DiffDelete
highlight DiffText term=reverse cterm=bold ctermbg=1 gui=bold guibg=Red
"ErrorMsg
"call <SID>X("VertSplit", "c2bfa5", "7f7f7f", "reverse")
"call <SID>X("Folded", "ffd700", "4d4d4d", "")
"call <SID>X("FoldColumn", "d2b48c", "4d4d4d", "")
"call <SID>X("IncSearch", "708090", "f0e68c", "")
call <SID>X("LineNr", "CCCCCC", "", "")
"call <SID>X("ModeMsg", "D4D4D4", "", "")
"call <SID>X("MoreMsg", "2e8b57", "", "")
"call <SID>X("NonText", "addbe7", "000000", "bold")
"call <SID>X("Question", "00ff7f", "", "")
"call <SID>X("Search", "f5deb3", "cd853f", "")
"call <SID>X("SpecialKey", "9acd32", "", "")
"call <SID>X("StatusLine", "c2bfa5", "000000", "reverse")
"call <SID>X("StatusLineNC", "c2bfa5", "7f7f7f", "reverse")
"call <SID>X("Title", "cd5c5c", "", "")
call <SID>X("Visual", "D3D3D3", "3E3E3E", "reverse")
"VisualNOS
"call <SID>X("WarningMsg", "fa8072", "", "")
"WildMenu
"Menu
"Scrollbar
"Tooltip
" Added 2014.05.23: set custom statusline colour. Lighter colour for the
" active window and darker colour for others.
call <SID>X("StatusLineNC", "c2bfa5", "000000", "reverse")
" Added 2014.05.25: set colour for cursorline
hi CursorLine cterm=none ctermbg=237
" Added 2020.04.29: remove underline on the line number of the current line
hi CursorLineNr cterm=none
" syntax highlighting groups
" Added 2020.06.03
hi Comment ctermfg=7
call <SID>X("NonText", "828282", "", "")
call <SID>X("SpecialKey", "828282", "", "")
call <SID>X("Constant", "CF6A4C", "", "")
call <SID>X("Identifier", "7587A6", "", "none")
call <SID>X("Function", "9B703F", "", "")
call <SID>X("Define", "CDA869", "", "none")
call <SID>X("Statement", "CDA869", "", "")
call <SID>X("String", "8F9D6A", "", "")
call <SID>X("PreProc", "AFC4DB", "", "")
call <SID>X("Type", "F9EE98", "", "")
call <SID>X("Special", "DAEFA3", "", "")
"Underlined
call <SID>X("Ignore", "666666", "", "")
"Error
call <SID>X("Todo", "ff4500", "eeee00", "")
" delete functions {{{
delf <SID>X
delf <SID>rgb
delf <SID>color
delf <SID>rgb_color
delf <SID>rgb_level
delf <SID>rgb_number
delf <SID>grey_color
delf <SID>grey_level
delf <SID>grey_number
" }}}
endif
" vim: set fdl=0 fdm=marker:
|
