Examine source code of Star Layout

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Star Layout",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(84, 84, 84)",
      "toolbar_field": "rgba(255, 255, 255, 0.53)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(84, 84, 84)",
      "popup": "rgb(231, 242, 244)",
      "popup_text": "rgb(192, 192, 192)",
      "tab_loading": "rgb(84, 84, 84)",
      "bookmark_text": "rgb(187, 191, 191)",
      "frame": "rgb(37, 37, 37)",
      "tab_background_text": "rgb(157, 157, 157)"
    }
  }
}