Examine source code of Rainbow Blur Refreshed

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Rainbow Blur Refreshed",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(42, 38, 47, 0.6)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(46, 91, 119)",
      "tab_background_text": "rgb(250, 247, 252)",
      "toolbar_field": "rgba(30, 25, 32, 0.4)",
      "toolbar_field_text": "rgb(214, 110, 152)",
      "tab_line": "rgb(211, 144, 231)",
      "popup": "rgb(56, 50, 63)",
      "popup_text": "rgb(231, 219, 229)",
      "frame_inactive": "rgb(63, 58, 66)",
      "sidebar_border": "rgba(231, 219, 229, 0)",
      "sidebar_highlight_text": "rgba(216, 189, 215, 0.2)",
      "sidebar_text": "rgb(231, 219, 229)",
      "sidebar": "rgb(56, 50, 63)",
      "tab_loading": "rgb(211, 144, 231)",
      "tab_text": "rgb(250, 247, 252)",
      "toolbar_bottom_separator": "rgba(211, 144, 231, 0)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0)"
    }
  }
}