Examine source code of Stal Fusion

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Stal 2",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.5)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(214, 218, 191)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgba(0, 0, 0, 0.15)",
      "popup": "rgb(231, 231, 231)",
      "popup_text": "rgb(0, 0, 0)",
      "button_background_active": "rgba(0, 0, 0, 0.1)",
      "button_background_hover": "rgba(255, 255, 255, 0)",
      "icons_attention": "rgb(0, 0, 0)",
      "popup_border": "rgba(255, 255, 255, 0.25)",
      "popup_highlight": "rgba(0, 0, 0, 0.35)",
      "toolbar_field_border_focus": "rgba(0, 0, 0, 0.15)",
      "toolbar_field_border": "rgba(0, 0, 0, 0.15)",
      "toolbar_field_highlight": "rgba(0, 0, 0, 0.15)",
      "tab_loading": "rgba(0, 0, 0, 0.15)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{104bb970-910b-417a-8927-9466dcd97e7c}"
    }
  }
}