Examine source code of Sunflower Puppy

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sunflower Puppy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(219, 220, 219, 0)",
      "toolbar_text": "rgb(255, 238, 131)",
      "frame": "rgb(104, 99, 63)",
      "tab_background_text": "rgb(255, 237, 90)",
      "toolbar_field": "rgba(255, 247, 202, 0.13)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 236, 118)",
      "popup": "rgb(104, 99, 63)",
      "popup_text": "rgb(255, 247, 202)",
      "button_background_active": "rgba(40, 36, 21, 0.74)",
      "button_background_hover": "rgba(79, 75, 47, 0.74)",
      "ntp_background": "rgb(104, 99, 63)",
      "ntp_text": "rgb(253, 245, 185)",
      "popup_border": "rgba(28, 26, 17, 0.74)",
      "popup_highlight_text": "rgb(255, 237, 156)",
      "popup_highlight": "rgba(96, 92, 60, 0.95)",
      "sidebar_border": "rgb(165, 158, 105)",
      "sidebar_highlight_text": "rgb(255, 241, 139)",
      "sidebar_highlight": "rgb(70, 66, 42)",
      "sidebar_text": "rgb(255, 246, 180)",
      "sidebar": "rgb(104, 99, 63)",
      "tab_selected": "rgba(85, 76, 27, 0.61)",
      "toolbar_bottom_separator": "rgba(255, 241, 139, 0.69)",
      "toolbar_field_border": "rgba(255, 237, 142, 0.27)",
      "toolbar_top_separator": "rgba(219, 220, 219, 0)",
      "tab_loading": "rgb(255, 236, 118)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e5c6ddc2-d547-4a96-a8e5-334e6ba024ae}"
    }
  }
}