Examine source code of Blue Compass

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue Compass",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(20, 20, 20, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 47, 235)",
      "tab_background_text": "rgb(190, 195, 198)",
      "toolbar_field": "rgba(233, 236, 237, 0.08)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(207, 15, 15)",
      "popup": "rgb(6, 38, 163)",
      "popup_text": "rgb(216, 216, 216)",
      "tab_loading": "rgb(207, 15, 15)"
    }
  }
}