.libsass.json

{
  "output": {
    "dir": ".",      // Relative or absolute path (can have ..)
    "structure": "nested"       // "flat", "nested", or ["nested", "relative/root/of/nest"]
  },
  "compile": {
    "style": 'nested',             // String | Output style: nested/expanded/compact/compressed
    "line-numbers": false,      // Bool   | Emit comments showing original line numbers
    "line-comments": false,     // Bool   | Alias for line-numbers, does not override
    "load-path": false,         // List   | Sass import paths: e.g. [ "C:\bourbon", "C:\compass" ]
    "plugin-path": false,       // String | Path to autoload plugins (libsass issue 878)
    "sourcemap": false,         // Bool   | Emit .css.map file for debugging in browser
    "omit-map-comment": false,  // Bool   | Omit comment about .css.map file in .css file
    "precision": false          // Int    | Decimal places for computed values
  }
}