Examine source code of Peak Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Peak Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(23, 92, 152, 0.44)",
      "toolbar_text": "rgb(205, 226, 255)",
      "frame": "rgb(20, 155, 222)",
      "tab_background_text": "rgb(124, 183, 234)",
      "toolbar_field": "rgba(255, 255, 255, 0.22)",
      "toolbar_field_text": "rgb(205, 226, 255)",
      "tab_line": "rgba(37, 166, 252, 0.81)",
      "popup": "rgba(27, 100, 148, 0.81)",
      "popup_text": "rgb(205, 226, 255)",
      "tab_selected": "rgba(27, 109, 180, 0.48)",
      "tab_loading": "rgba(37, 166, 252, 0.81)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{00e56629-7b34-44cb-9a73-0b0ad1f8a576}"
    }
  }
}