Examine source code of Red Velvet Cookie

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Red Velvet Cookie",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(166, 11, 44)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(40, 25, 28)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(40, 25, 28)",
      "toolbar_field_text": "rgb(231, 147, 163)",
      "tab_line": "rgb(223, 0, 47)",
      "popup": "rgba(166, 11, 44, 0.87)",
      "popup_text": "rgb(255, 255, 255)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(24, 24, 24)",
      "ntp_text": "rgb(255, 0, 0)",
      "popup_border": "rgb(146, 146, 146)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "tab_selected": "rgb(166, 11, 44)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(0, 0, 0)",
      "tab_loading": "rgb(223, 0, 47)"
    }
  }
}