termcol.inc.pl

   1 use 5.014;
   2 use utf8;
   3 use Shiar_Sheet::Colour 1.05;
   4
   5 +{
   6         default => [qw( ansi ansi88 ansi256 )],
   7         more    => [qw( ansi mirc pastel slutty solarized ansi88 ansi256 )],
   8         ansi    => [qw( cga putty xterm ubuntu tango app campbell html cgarne )],
   9         legacy  => [qw( c64 msx mac2 risc arnegame db16 cpc cpcboy shiar32 ppu 2c03 shovel 64 )],
  10
  11         xcolors => sub {
  12                 my $pals = do 'data/termcol-xcolor.inc.pl' or die $! || $@;
  13                 $_[0]->{$_} = $pals->{$_} for keys %{$pals};
  14                 return 'xcolor';
  15         },
  16
  17         html => {
  18                 title => 'HTML keywords (inherited by CSS≥2.1 and SVG), mostly identical to X11',
  19                 href => 'http://www.w3.org/TR/css3-color/#html4',
  20                 list => [qw(
  21                         000000:black 800000:maroon  008000:green 808000:olive
  22                         000080:navy  800080:purple  008080:cyan  C0C0C0:silver
  23                         808080:gray  FF0000:red     00FF00:lime  FFFF00:yellow
  24                         0000FF:blue  FF00FF:fuchsia 00FFFF:aqua  FFFFFF:white
  25                 )],
  26                 parent => 'cga',
  27         },
  28         cga => {
  29                 # linux console, kde?
  30                 list => [qw(
  31                         000000 AA0000 00AA00 AA5500 0000AA AA00AA 00AAAA AAAAAA
  32                         555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF
  33                 )],
  34                 # reset bold dim italic underline blink fastblink reverse hidden
  35                 hueorder => [ 1,3,2,6,4,5, 0,7 , 9,11,10,14,12,13, 8,15 ],
  36         },
  37         ubuntu => {
  38                 title => 'setvtrgb defaults for Ubuntu kbd',
  39                 list => [qw(
  40                         010101 DE382B 39B54A FFC706 006FB8 762671 2CB5E9 CCCCCC
  41                         808080 FF0000 00FF00 FFFF00 0000FF FF00FF 00FFFF FFFFFF
  42                 )],
  43                 parent => 'cga',
  44         },
  45         xterm => {
  46                 # rxvt except for blues
  47                 list => [qw(
  48                         000000 CC0000 00CC00 CCCC00 4682B4 CC00CC 00CCCC E5E5E5
  49                         4C4C4C FF0000 00FF00 FFFF00 1E90FF FF00FF 00FFFF FFFFFF
  50                 )],
  51                 parent => 'cga',
  52         },
  53         tango => {
  54                 # default Gnome theme
  55                 list => [qw(
  56                         2E3436 CC0000 4E9A06 C4A000 3465A4 75507B 06989A D3D7CF
  57                         555753 EF2929 8AE234 FCE94F 729FCF AD7FA8 34E2E2 EEEEEC
  58                 )],
  59                 parent => 'cga',
  60         },
  61         xkcd => {
  62                 title => 'human averages in xkcd survey results',
  63                 href => 'http://blog.xkcd.com/2010/05/03/color-survey-results/',
  64                 list => [qw(
  65                         000000:black 650021:maroon  15b01a:green 6e750e:olive
  66                         01153e:navy  7e1e9c:purple  029386:teal  c5c9c7:silver
  67                         929591:grey  e50000:red     aaff32:lime  ffff14:yellow
  68                         0343df:blue  ed0dd9:fuchsia 00ffff:cyan  ffffff:white
  69                 )],
  70                 parent => 'cga',
  71         },
  72         android => {
  73                 href => 'http://developer.android.com/guide/practices/ui_guidelines/icon_design.html',
  74                 title => 'recommended colour palette for Android icons',
  75                 list => [qw(
  76                         FFFFFF:white   BFBFBF:light   808080:medium  404040:dark
  77                         000000:black   6699FF:blue1   3366CC:blue2   003399:blue3
  78                         99CC33:green1  00CC00:green2  669933:green3  FFCC00:orange1
  79                         FF9900:orange2 FF6600:orange3 CC0000:red
  80                 )],
  81         },
  82         app => {
  83                 name => 'Term.app',
  84                 title => 'Mac OSX Yosemite Terminal app',
  85                 list => [qw(
  86                         000000 990B00 35A600 999900 0000B3 B304B2 31A6B3 BFBFBF
  87                         666666 E51600 48D901 E5E600 0100FF E607E5 48E6E6 E6E5E6
  88                 )],
  89                 parent => 'cga',
  90         },
  91         iterm => ['putty'], # identical in v2.2.1
  92         pastel => {
  93                 name => 'iTerm Pastel',
  94                 list => [qw(
  95                         4F4F4F FF6C60 A8FF60 FFFFB6 96CBFE FF73FD C6C5FE EEEEEE
  96                         7C7C7C FFB6B0 CEFFAC FFFFCC B5DCFF FF9CFE DFDFFE FFFFFF
  97                 )],
  98                 parent => 'cga',
  99         },
 100         campbell => {
 101                 name => 'Campbell',
 102                 title => 'Windows 10 Console', # as of v1709
 103                 list => [qw(
 104                         0C0C0C C50F1F 13A10E C19C00 0037DA 881798 3A96DD CCCCCC
 105                         767676 E74856 16C60C F9F1A5 3B78FF B4009E 61D6D6 F2F2F2
 106                 )],
 107                 parent => 'cga',
 108         },
 109         putty => {
 110                 name => 'PuTTY',
 111                 list => [qw(
 112                         000000 BB0000 00BB00 BBBB00 0000BB BB00BB 00BBBB BBBBBB
 113                         555555 FF5555 55FF55 FFFF55 5555FF FF55FF 55FFFF FFFFFF
 114                 )],
 115                 parent => 'cga',
 116         },
 117         slutty => {
 118                 name => 'SluTTY',
 119                 href => 'http://www.npjh.com/slutty.html',
 120                 title => 'PuTTY fork with light colour scheme',
 121                 list => [qw(
 122                         000000 9C1D1D 6C9446 AC9A47 335786 8F6496 486768 E0DCDC
 123                         2F2F2F CD5757 8FC35B D1C45E 5C81A9 BC95B7 76CBCB EEEEEC
 124                 )],
 125                 parent => 'cga',
 126         },
 127         mirc => {
 128                 name => 'mIRC',
 129                 href => 'http://www.mirc.com/colors.html',
 130                 list => [qw(
 131                         FFFFFF 000000 00007F 009300 FF0000 7F0000 9C009C FC7F00
 132                         FFFF00 00FC00 009393 00FFFF 0000FC FF00FF 7F7F7F D2D2D2
 133                 )],
 134                 ansiorder => [ 1,5,3,7,2,6,10,15 , 14,4,9,8,12,13,11,0  ],
 135                 hueorder => [ 5,7,3,10,2,6, 1,15 , 4,8,9,11,12,13, 14,0 ],
 136         },
 137         mac2 => {
 138                 name => 'MacII',
 139                 list => [qw(
 140                         FFFFFF FBF305 FF6403 DD0907 F20884 4700A5 0000D3 02ABEA
 141                         1FB714 006412 562C05 90713A C0C0C0 808080 404040 000000
 142                 )],
 143                 ansiorder => [ 15,3,9,11,6,5,7,12 , 14,2,8,1,10,4,13,0 ],
 144                 hueorder => [ 3,2,1,8,7,6,5,4 , 10,11,9 , 15,14,13,12,0 ],
 145         },
 146         risc => {
 147                 name => 'RISC',  # v2/3
 148                 list => [qw(
 149                         FFFFFF DDDDDD BBBBBB 999999 777777 555555 333333 000000
 150                         004499 EEEE00 00CC00 DD0000 EEEEBB 558800 FFBB00 00BBFF
 151                 )],
 152                 ansiorder => [ 7,5,13,14,4,3,2,1 , 6,11,10,9,8,12,15,0 ],
 153                 hueorder => [ 11,14,9,12,13,10,15,8 , reverse 0..7 ],
 154         },
 155         c64 => {
 156                 name => 'C=64',  # commodore 64/128
 157                 list => [ map {
 158                         # 5-bit luma ± 2-bit colour angle
 159                         my ($y, $neg, $hue) = split /(-)|\+/;
 160
 161                         # convert to yuv
 162                         my ($u, $v) = (0, 0);
 163                         if (defined $hue) {
 164                                 my $RAD = 3.14159;
 165                                 $hue *= $RAD / 8;
 166                                 $hue += $RAD if $neg;
 167                                 $u = cos $hue;
 168                                 $v = sin $hue;
 169                         }
 170
 171                         # convert to rgb
 172                         $y /= 32;
 173                         $_ /= 2 for $u, $v;
 174                         Shiar_Sheet::Colour->newyuv($y, $u, $v)->rgb48;
 175                 } qw(
 176                         0    32  10+5 20-5 12+2 16-2 8+0  24-0
 177                         12+6 8+7 16+5 10   15   24-2 15+0 20
 178                 )],
 179                 ansiorder => [ 0,2,5,9,6,4,3,15 , 11,10,13,7,14,8,12,1 ],
 180                 hueorder => [ 2,8,7,5,3,6,4,9 , 10,13,14,0,11,12,15,1 ],
 181         },
 182         jw64 => {
 183                 name => 'JW-64',
 184                 url => 'https://lospec.com/palette-list/jw-64',
 185                 list => [qw(
 186                         000000 ffffff a82f2f 63d4f0 b437b4 54c048 403fc0 e0e040
 187                         b46429 644020 e0806c 404040 8c8c8c a0f66e 6496f4 c8c8c8
 188                 )],
 189 #                       000000 404040 8c8c8c c8c8c8 644020 a82f2f b46429 e0806c
 190 #                       403fc0 6496f4 63d4f0 e0e040 b437b4 54c048 a0f66e ffffff
 191                 parent => 'c64',
 192         },
 193
 194         msx => [qw( msx1 msx2 arnejmp simplejpc )],
 195         msx1 => {
 196                 name => 'MSX',
 197                 list => [ map {
 198                         my ($y, @c) = split /;/;
 199                         $_ = ($_ - .47) / .53 / 2 for @c;
 200                         Shiar_Sheet::Colour->newyuv($y, @c)->rgb48;
 201                 } qw(
 202                         0.00;0.47;0.47 0.00;0.47;0.47 0.53;0.20;0.07 0.67;0.27;0.17
 203                         0.40;1.00;0.40 0.53;0.93;0.43 0.47;0.30;0.83 0.73;0.70;0.00
 204                         0.53;0.27;0.93 0.67;0.27;0.93 0.73;0.07;0.57 0.80;0.17;0.57
 205                         0.47;0.23;0.13 0.53;0.67;0.73 0.80;0.47;0.47 1.00;0.47;0.47
 206                 )],
 207                 ansiorder => [ 0,6,12,10,4,13,7,14 , 1,8,2,11,5,9,3,15 ],
 208                 hueorder => [ 8,10,2,12,4,6, 1,0 , 9,11,3,7,5,13, 14,15 ],
 209         },
 210         msx2 => {
 211                 name => 'MSX2',
 212                 list => [
 213                         map { s{([0-7])}{sprintf '%02X', $1 / 7 * 255}egr } qw(
 214                         000 000 161 373 117 237 511 267
 215                         711 733 661 663 141 625 555 777
 216                 )],
 217                 parent => 'msx1',
 218         },
 219         arnejmp => {
 220                 href => 'http://androidarts.com/palette/16pal.htm',
 221                 title => "Arne's Japanese Machine Palette v3 (MSX)",
 222                 name => 'A:JMP',
 223                 list => [qw(
 224                         000000 191028 46AF45 A1D685 453E78 7664FE 833129 9EC2E8
 225                         DC534B E18D79 D6B97B E9D8A1 216C4B D365C8 AFAAB9 F5F4EB
 226                 )],
 227                 parent => 'msx1',
 228         },
 229         simplejpc => {
 230                 href => 'http://pixeljoint.com/pixelart/119844.htm',
 231                 title => 'SimpleJPC-16 by Adigun Polack',
 232                 name => 'SimpleJPC',
 233                 parent => 'msx1',
 234                 list => [qw(
 235                         050403 221F31 316F23 7CC264 404A68 678FCB 543516 8BE1E0
 236                         A14D3F EA9182 E1B047 F5EE9B 9B6E2D A568D4 9A93B7 FEFEFE
 237                 )],
 238         },
 239
 240         arnegame => {
 241                 href => 'http://androidarts.com/palette/16pal.htm',
 242                 title => 'Generic 16 color game palette v20 by Arne Niklas Jansson',
 243                 name => 'Arne',
 244                 list => [qw(
 245                         000000:void     9D9D9D:ash     FFFFFF:blind   BE2633:bloodred
 246                         E06F8B:pigmeat  493C2B:oldpoop A46422:newpoop EB8931:blaze
 247                         F7E26B:zornskin 2F484E:shade   44891A:leaf    A3CE27:slime
 248                         1B2632:night    005784:sea     31A2F2:sky     B2DCEF:cloud
 249                 )],
 250                 hueorder => [ 3,7,8,11,10,9,13,14 , 4,6,5,15,12,0,1,2 ],
 251                 ansiorder => [ 0,3,10,6,13,12,9,1 , 5,7,11,8,14,4,15,2 ],
 252                 lumorder => [ 0,5,9,12 , 3,6,10,13,1 , 4,7,8,11,14,15,2 ], # by brightness
 253         },
 254         cgarne => {
 255                 href => 'http://androidarts.com/palette/16pal.htm',
 256                 title => "version E",
 257                 name => 'CGArne',
 258                 list => [qw(
 259                         000000 8A3622 0C7E45 AA5C3D 2234D1 5C2E78 44AACC B5B5B5
 260                         5E606E EB8A60 6CD947 FFD93F 4C81FB E23D69 7BE2F9 FFFFFF
 261                 )],
 262                 parent => 'cga',
 263         },
 264         db16 => {
 265                 href => 'http://pixeljoint.com/forum/forum_posts.asp?TID=12795',
 266                 title => "DawnBringer's 16 color palette v1.0",
 267                 name => 'DawnBringer16',
 268                 list => [qw(
 269                         140C1C 442434 30346D 4E4A4E 854C30 346524 D04648 757161
 270                         597DCE D27D2C 8595A1 6DAA2C D2AA99 6DC2CA DAD45E DEEED6
 271                 )],
 272                 ansiorder => [ 0,1,5,4,2,12,10,7 , 3,6,11,14,8,9,13,15 ],
 273                 hueorder => [ 6,9,14,11,13,8,2,1 , 12,4,7,5,15,10,3,0 ],
 274         },
 275         db32 => {
 276                 href => 'http://pixeljoint.com/forum/forum_posts.asp?TID=16247',
 277                 title => "DawnBringer's 32 color palette v1.0",
 278                 name => 'DawnBringer32',
 279                 list => [qw(
 280                         000000 222034 45283C 663931 8F563B DF7126 D9A066 EEC39A
 281                         FBF236 99E550 6ABE30 37946E 4B692F 524B24 323C39 3F3F74
 282                         306082 5B6EE1 639BFF 5FCDE4 CBDBFC FFFFFF 9BADB7 847E87
 283                         696A6A 595652 76428A AC3232 D95763 D77BBA 8F974A 8A6F30
 284                 )],
 285         },
 286         solarized => {
 287                 href => 'http://ethanschoonover.com/solarized',
 288                 list => [qw(
 289                         002b36:base03 073642:base02 586e75:base01 657b83:base00
 290                         839496:base0  93a1a1:base1  eee8d5:base2  fdf6e3:base3
 291                         b58900:yellow cb4b16:orange dc322f:red    d33682:magenta
 292                         6c71c4:violet 268bd2:blue   2aa198:cyan   859900:green
 293                 )],
 294                 ansiorder => [ 1,10,15,8,13,11,14,6 , 0,9,2,3,4,12,5,7 ],
 295         },
 296
 297         cpc => {
 298                 name => 'Amstrad CPC',
 299                 rgbmap => [
 300                         3 => sub {
 301                                 $_[2] + 3 * ($_[0] + 3 * $_[1]),
 302                                 map { $_ && $_ * 127 + 1 } @_
 303                         },
 304                 ],
 305         },
 306         cpcboy => {
 307                 name => 'Arne CPC Boy v3',
 308                 href => 'http://androidarts.com/palette/16pal.htm',
 309                 rgbmap => [
 310                         3 => sub {
 311                                 my $index = $_[2] + 3 * ($_[0] + 3 * $_[1]);
 312                                 $index,
 313                                 map { map { hex } /(..)/g } [qw(
 314                                         000000 1B1B76 3636D8  761F28 623870 953EA7  CC3636 CE4B7A E3669A
 315                                         1B761B 197F96 1986F2  8C6E1A 8E8E8E 9C9EE7  E48E2A EAA597 FE80FE
 316                                         54BF47 37C79F 35CFE4  8DD836 B8D1B5 97E9D1  EDD446 EBE4A4 FFFFFF
 317                                 )]->[$index]
 318                         },
 319                 ],
 320                 table => [
 321                         # gameboy ramp
 322                         [qw( 293941:31       :   F2EFE7:27 )],
 323                         [qw( 485D48:30 859550:29 BAC375:28 )],
 324                 ],
 325                 parent => 'cpc',
 326         },
 327         shiar32 => {
 328                 name => 'Shiar32',
 329                 table => [
 330                         [qw( 761F28:2A CC2222:3A CC8B7B:4A )],
 331                         [qw( 4C3C2B:1B CB4B16:3B EB8931:5B )],
 332                         [qw( 5E581A:2C B58900:3C C0C070:4C )],
 333                         [qw(         0 859900:3D         0 )],
 334                         [qw( 1B661B:2E 4E9A06:3E 8BBB7B:4E )],
 335                         [qw(         0 37A76F:3F         0 )],
 336                         [qw( 2F484E:1G 06989A:3G 31E2C2:5G )],
 337                         [qw(         0 0088CC:3H         0 )],
 338                         [qw( 00337C:2I 3465A4:3I 6899AA:4I )],
 339                         [qw(         0 6C71C4:3J         0 )],
 340                         [qw( 362747:1K 75507B:3K F06FCB:5K )],
 341                         [qw(         0 D33662:3L         0 )],
 342                         [qw( 000000:0  686868:2  CCCCCC:4  )],
 343                         [qw( 444444:1  B0B0B0:3  FFFFFF:5  )],
 344                 ],
 345                 parent => 'cpc',
 346         },
 347
 348         ppu => {
 349                 name => '<abbr title="Picture Processing Unit">PPU</abbr> (Famicom/NES)',
 350                 table => [
 351                         [qw( 717171:00 BABABA:10 FFFFFF:20 FFFFFF:<s>30</s> )],
 352                         [qw( 012FB3:01 235CFF:11 5380FF:21 ACC1FF:31 )],
 353                         [qw( 2B17C2:02 5139FF:12 7562FF:22 BAB1FF:32 )],
 354                         [qw( 5705AA:03 932AFF:13 AC5AFF:23 D7B1FF:33 )],
 355                         [qw( 780071:04 C222BA:14 FE69F6:24 FEC0FB:34 )],
 356                         [qw( 860627:05 D52C57:15 FE6A90:25 FEBECF:35 )],
 357                         [qw( 7C1800:06 C84300:16 FE853F:26 FECBAD:36 )],
 358                         [qw( 5F3100:07 A16400:17 F2B403:27 FEE59D:37 )],
 359                         [qw( 344900:08 698400:18 B9D500:28 E9F596:38 )],
 360                         [qw( 095B00:09 2F9B00:19 7FEC0F:29 D1FFA3:39 )],
 361                         [qw( 006100:0A 04A40D:1A 52F55B:2A BCFFC0:3A )],
 362                         [qw( 005A39:0B 009B6F:1B 40EBBF:2B B7FEEC:3B )],
 363                         [qw( 004881:0C 0083CE:1C 43BBFF:2C AEE1FF:3C )],
 364                         [qw( 000000:0D 0C0C0C:1D 5B5B5B:2D C3C3C3:3D )],
 365                 ],
 366                 hueorder => [6..12, 1..5, 13, 0],
 367         },
 368         '2c03' => {
 369                 name => '2C03–5 PPU (PlayChoice/Famicom)',
 370                 table => [
 371                         do {
 372                                 my @rgb = qw(
 373                                         333 555 777 777
 374                                         014 036 357 567
 375                                         006 027 447 657
 376                                         326 407 637 757
 377                                         403 507 707 747
 378                                         503 704 737 755
 379                                         510 700 740 764
 380                                         420 630 750 770
 381                                         320 430 660 773
 382                                         120 140 360 572
 383                                         031 040 070 473
 384                                         040 053 276 276
 385                                         022 044 077 467
 386                                         111 222 444 666
 387                                 );
 388                                 my %dup;
 389                                 map { [
 390                                         map { [ $dup{$_}++ ? "<s>$_</s>" : $_, map { $_ * 255 / 7 } split // ] }
 391                                         map { $rgb[$_] }
 392                                         $_*4 .. $_*4+3
 393                                 ] } 0..13
 394                         }
 395                 ],
 396                 parent => 'ppu',
 397         },
 398         neslike => {
 399                 name => '0xDB NESLike',
 400                 table => [
 401                         [qw( 3F3F3F:00 7F7F7F:10 F9F9F9:20 FFFFFF:30 )],
 402                         [qw( 2B34AD:01 6B74ED:11 ABB4FF:21 EAF3FF:31 )],
 403                         [qw( 591DAB:02 995DEB:12 D99CFF:22 FFDCFF:32 )],
 404                         [qw( 810F8C:03 C04FCC:13 FF8EFF:23 FFCEFF:33 )],
 405                         [qw( 960E59:04 D64E98:14 FF8DD8:24 FFCDFF:34 )],
 406                         [qw( 951A1E:05 D45A5E:15 FF9A9E:25 FFD9DD:35 )],
 407                         [qw( 7C3000:06 BC702C:16 FCB06C:26 FFEFAC:36 )],
 408                         [qw( 534A00:07 938A11:17 D3CA51:27 FFFF90:37 )],
 409                         [qw( 256200:08 65A113:18 A5E153:28 E4FF92:38 )],
 410                         [qw( 096C00:09 49AC25:19 89EC65:29 C9FFA4:39 )],
 411                         [qw( 007213:0A 2DB153:1A 6CF193:2A ACFFD2:3A )],
 412                         [qw( 006A4D:0B 26AA8D:1B 66E9CD:2B A6FFFF:3B )],
 413                         [qw( 005683:0C 3896C3:1C 77D6FF:2C B7FFFF:3C )],
 414                         [qw( 000000:<s>0D</s> 000000:1D 333333:2D 8C8C8C:3D )],
 415                 ],
 416                 parent => 'ppu',
 417                 hueorder => [6..12, 1..5, 13, 0],
 418         },
 419         shovel => {
 420                 name => 'Shovel Knight PPU',
 421                 table => [
 422                         [qw( 7C7C7C:00 BCBCBC:10 F8F8F8:20 FCFCFC:30 )],
 423                         [qw( 0000FC:01 0078F8:11 3CBCFC:21 A4E4FC:31 )],
 424                         [qw( 0000BC:02 0058F8:12 6888FC:22 B8B8F8:32 )],
 425                         [qw( 4428BC:03 6844FC:13 9878F8:23 D8B8F8:33 )],
 426                         [qw( 940084:04 D800CC:14 F878F8:24 F8B8F8:34 )],
 427                         [qw( A80020:05 E40058:15 F85898:25 F8A4C0:35 )],
 428                         [qw( A81000:06 F83800:16 F87858:26 F0D0B0:36 )],
 429                         [qw( 881400:07 E45C10:17 FCA044:27 FCE0A8:37 )],
 430                         [qw( 503000:08 AC7C00:18 F8B800:28 F8D878:38 )],
 431                         [qw( 007800:09 00B800:19 B8F818:29 D8F878:39 )],
 432                         [qw( 006800:0A 00A800:1A 58D854:2A B8F8B8:3A )],
 433                         [qw( 005800:0B 00A844:1B 58F898:2B B8F8D8:3B )],
 434                         [qw( 004058:0C 008888:1C 00E8D8:2C 00FCFC:3C )],
 435                         [qw( 000000:0D 080808:1D 787878:2D D8D8D8:3D )],
 436                         [qw( 22123B:0S 360900:1S 824E00:2S 9E9E5C:3S )],
 437                 ],
 438                 parent => 'ppu',
 439                 hueorder => [6..12, 1..5, 13, 0, 14],
 440         },
 441
 442         64 => {
 443                 name => '6-bit (Sega Master System, EGA, FAP80)',
 444                 rgbmap => [4],
 445         },
 446         ansi88 => {
 447                 name => 'rxvt 88 colour extension',
 448                 rgbmap => [
 449                         4 => sub {
 450                                 $_[2] + 4 * ($_[1] + 4 * $_[0]) + 16,
 451                                 map { (0, 139, 205, 255)[$_] } @_
 452                         },
 453                         [ map { [80 + $_, (($_ + 2 + ($_>0)) * 255/11) x 3] } 0 .. 7 ],
 454                 ],
 455         },
 456         ansi256 => {
 457                 name => 'xterm 256 colour extension',
 458                 # \033[38;5;${FG}m
 459                 rgbmap => [
 460                         6 => sub {
 461                                 $_[2] + 6 * ($_[1] + 6 * $_[0]) + 16,
 462                                 map { $_ && $_*40 + 55 } @_
 463                         },
 464                         [ map { [232 + $_, ($_ * 10 + 8) x 3] } 0 .. 23 ],
 465                 ],
 466         },
 467         512 => {
 468                 name => '9-bit RGB map',
 469                 # atari st, msx2, sega genesis/nomad, turbografx16
 470                 rgbmap => [8],
 471         },
 472         '4k' => {
 473                 name => '12-bit RGB map',
 474                 # amiga, apple IIgs, game gear, neo geo, lynx, cpc+, nextstation
 475                 rgbmap => [
 476                         12 => sub {
 477                                 join('', map { sprintf '%X', $_ } @_),
 478                                 map { int $_ * 255 / 11 } @_
 479                         },
 480                 ],
 481         },
 482 }