Examine source code of Strata Black for Mac

{
  "theme": {
    "images": {
      "theme_frame": "stratablackmac_top.png"
    },
    "colors": {
      "frame": "#eae6e6",
      "tab_background_text": "#f7f3f3"
    }
  },
  "version": "2.0",
  "name": "Strata Black for Mac",
  "manifest_version": 2,
  "description": "This is identical to Strata Black, by slip_x, except it is for Mac users.  (It does not have shading for a menu bar, which the Mac version doesn't have.)"
}