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If not in a node environment, not supported.\n\n2. If stdout is not a TTY, not supported, unless the `ignoreTTY`\n   option is set.\n\n3. If the `TERM` environ is `dumb`, not supported, unless the\n   `ignoreDumb` option is set.\n\n4. If on Windows, then support 16 colors.\n\n5. If using Tmux, then support 256 colors.\n\n7. Handle continuous-integration servers.  If `CI` or\n   `TEAMCITY_VERSION` are set in the environment, and `TRAVIS` is not\n   set, then color is not supported, unless `ignoreCI` option is set.\n\n6. Guess based on the `TERM_PROGRAM` environ.  These terminals support\n   16m colors:\n\n    - `iTerm.app` version 3.x supports 16m colors, below support 256\n    - `MacTerm` supports 16m colors\n    - `Apple_Terminal` supports 256 colors\n    - Have more things that belong on this list?  Send a PR!\n\n8. Make a guess based on the `TERM` environment variable.  Any\n   `xterm-256color` will get 256 colors.  Any screen, xterm, vt100,\n   color, ansi, cygwin, or linux `TERM` will get 16 colors.\n\n9. If `COLORTERM` environment variable is set, then support 16 colors.\n\n10. At this point, we assume that color is not supported.\n\n## USAGE\n\n```javascript\nvar testColorSupport = require('color-support')\nvar colorSupport = testColorSupport(/* options object */)\n\nif (!colorSupport) {\n  console.log('color is not supported')\n} else if (colorSupport.has16m) {\n  console.log('\\x1b[38;2;102;194;255m16m colors\\x1b[0m')\n} else if (colorSupport.has256) {\n  console.log('\\x1b[38;5;119m256 colors\\x1b[0m')\n} else if (colorSupport.hasBasic) {\n  console.log('\\x1b[31mbasic colors\\x1b[0m')\n} else {\n  console.log('this is impossible, but colors are not supported')\n}\n```\n\nIf you don't have any options to set, you can also just look at the\nflags which will all be set on the test function itself.  (Of course,\nthis doesn't return a falsey value when colors aren't supported, and\ndoesn't allow you to set options.)\n\n```javascript\nvar colorSupport = require('color-support')\n\nif (colorSupport.has16m) {\n  console.log('\\x1b[38;2;102;194;255m16m colors\\x1b[0m')\n} else if (colorSupport.has256) {\n  console.log('\\x1b[38;5;119m256 colors\\x1b[0m')\n} else if (colorSupport.hasBasic) {\n  console.log('\\x1b[31mbasic colors\\x1b[0m')\n} else {\n  console.log('colors are not supported')\n}\n```\n\n## Options\n\nYou can pass in the following options.\n\n* ignoreTTY - default false.  Ignore the `isTTY` check.\n* ignoreDumb - default false.  Ignore `TERM=dumb` environ check.\n* ignoreCI - default false.  Ignore `CI` environ check.\n* env - Object for environment vars. Defaults to `process.env`.\n* stream - Stream for `isTTY` check. Defaults to `process.stdout`.\n* term - String for `TERM` checking. Defaults to `env.TERM`.\n* alwaysReturn - default false.  Return an object when colors aren't\n  supported (instead of returning `false`).\n* level - A number from 0 to 3.  This will return a result for the\n  specified level.  This is useful if you want to be able to set the\n  color support level explicitly as a number in an environment\n  variable or config, but then use the object flags in your program.\n  Except for `alwaysReturn` to return an object for level 0, all other\n  options are ignored, since no checking is done if a level is\n  explicitly set.\n\n## Return Value\n\nIf no color support is available, then `false` is returned by default,\nunless the `alwaysReturn` flag is set to `true`.  This is so that the\nsimple question of \"can I use colors or not\" can treat any truthy\nreturn as \"yes\".\n\nOtherwise, the return object has the following fields:\n\n* `level` - A number from 0 to 3\n    * `0` - No color support\n    * `1` - Basic (16) color support\n    * `2` - 256 color support\n    * `3` - 16 million (true) color support\n* `hasBasic` - Boolean\n* `has256` - Boolean\n* `has16m` - Boolean\n\n## CLI\n\nYou can run the `color-support` bin from the command line which will\njust dump the values as this module calculates them in whatever env\nit's run.  It takes no command line arguments.\n\n## Credits\n\nThis is a spiritual, if not actual, fork of\n[supports-color](http://npm.im/supports-color) by the ever prolific\n[Sindre Sorhus](http://npm.im/~sindresorhus).\n","maintainers":[{"name":"isaacs","email":"i@izs.me"}],"time":{"modified":"2023-04-12T02:46:12.865Z","created":"2016-07-17T08:41:45.378Z","1.0.1":"2016-07-17T08:41:45.378Z","1.1.0":"2016-07-18T05:47:13.648Z","1.1.1":"2016-07-26T18:24:36.477Z","1.1.2":"2016-10-07T21:30:04.663Z","1.1.3":"2017-06-06T20:40:54.019Z"},"homepage":"https://github.com/isaacs/color-support#readme","keywords":["terminal","color","support","xterm","truecolor","256"],"repository":{"type":"git","url":"git+https://github.com/isaacs/color-support.git"},"author":{"name":"Isaac Z. Schlueter","email":"i@izs.me","url":"http://blog.izs.me/"},"bugs":{"url":"https://github.com/isaacs/color-support/issues"},"license":"ISC","readmeFilename":"README.md","users":{"flumpus-dev":true}}