Examine source code of Blurred Blue

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Blurred Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(33, 33, 36)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(25, 64, 120)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(42, 43, 45, 0.54)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(0, 0, 0, 0)",
      "popup": "rgb(37, 45, 49)",
      "popup_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(0, 128, 255, 0)",
      "sidebar_border": "rgba(255, 255, 255, 0)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(34, 35, 36)",
      "tab_background_separator": "rgba(255, 255, 255, 0)",
      "toolbar_bottom_separator": "rgba(255, 255, 255, 0)",
      "toolbar_field_border": "rgba(255, 255, 255, 0)",
      "toolbar_field_highlight_text": "rgba(255, 255, 255, 0)",
      "toolbar_field_highlight": "rgba(255, 255, 255, 0)",
      "toolbar_field_separator": "rgba(255, 255, 255, 0)",
      "toolbar_field_text_focus": "rgba(255, 255, 255, 0)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0)",
      "toolbar_vertical_separator": "rgba(0, 128, 255, 0)",
      "tab_loading": "rgba(0, 0, 0, 0)"
    }
  }
}