Examine source code of Diagonal Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Diagonal Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(0, 64, 112, 0.82)",
      "toolbar_text": "rgb(248, 248, 248)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(1, 49, 87)",
      "toolbar_field": "rgb(0, 64, 112)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgba(0, 64, 112, 0.97)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  }
}