Examine source code of gruvbox-material

{
  "name": "PaperDark",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "trans.png"
    },
    "colors": {
      "frame": "rgba(80, 73, 69, 1)",
      "tab_background_text": "rgba(142, 192, 124, 1)",
      "toolbar": "rgba(213, 196, 161, 1)",
      "bookmark_text": "rgba(80, 73, 69, 1)",
      "toolbar_field": "rgba(60, 56, 54, 1)",
      "toolbar_field_text": "rgba(250, 189, 47, 1)"
    }
  }
}