Examine source code of Trippy R&B

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Trippy R&B",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(10, 10, 10)",
      "toolbar_text": "rgb(255, 0, 0)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 6, 0)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgb(255, 0, 0)",
      "tab_line": "rgb(255, 0, 0)",
      "popup": "rgb(29, 29, 29)",
      "popup_text": "rgb(255, 7, 0)",
      "frame_inactive": "rgb(0, 0, 0)",
      "icons": "rgb(255, 0, 0)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_border": "rgb(255, 0, 0)",
      "popup_highlight_text": "rgb(32, 32, 32)",
      "popup_highlight": "rgb(255, 0, 0)",
      "tab_background_separator": "rgb(48, 48, 48)",
      "tab_loading": "rgb(255, 21, 0)",
      "tab_selected": "rgba(0, 0, 0, 0.75)",
      "tab_text": "rgb(255, 0, 0)",
      "toolbar_field_border_focus": "rgb(123, 6, 0)",
      "toolbar_field_border": "rgb(172, 19, 0)",
      "toolbar_field_highlight": "rgba(255, 0, 0, 0.25)",
      "toolbar_field_text_focus": "rgb(255, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9199d7ae-ab18-439f-94c5-4ff33fee39d1}"
    }
  }
}