Examine source code of Salmon

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "Salmon",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-001-9c6d74e14860e77ee6f8f43e824bff25.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.57)",
      "toolbar_text": "rgb(168, 34, 61)",
      "frame": "rgb(176, 73, 83)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(115, 119, 198)",
      "tab_line": "rgba(207, 106, 149, 0.7)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "ntp_background": "rgb(244, 220, 218)",
      "popup_highlight_text": "rgb(98, 98, 98)",
      "popup_highlight": "rgb(222, 208, 206)",
      "tab_selected": "rgba(255, 255, 255, 0.68)",
      "toolbar_field_border_focus": "rgba(65, 74, 102, 0.35)",
      "toolbar_field_highlight": "rgba(124, 150, 198, 0.72)",
      "tab_loading": "rgba(207, 106, 149, 0.7)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b62b8b70-d704-4c7f-b78c-c0c56cb18aae}"
    }
  }
}