Examine source code of RGB Aesthetics

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "RGB Aesthetics",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top",
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(166, 166, 166)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(22, 22, 22)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(255, 255, 255)",
      "popup": "rgb(0, 0, 0)",
      "popup_text": "rgb(221, 221, 221)",
      "ntp_background": "rgb(0, 0, 0)",
      "popup_border": "rgba(255, 255, 255, 0.2)",
      "tab_background_separator": "rgba(54, 12, 255, 0)",
      "tab_selected": "rgb(0, 0, 0)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_field_border_focus": "rgb(255, 255, 255)",
      "toolbar_field_border": "rgba(255, 255, 255, 0.1)",
      "toolbar_field_focus": "rgba(0, 0, 0, 0.95)",
      "toolbar_field_highlight": "rgb(85, 85, 85)",
      "toolbar_top_separator": "rgb(0, 0, 0)",
      "tab_loading": "rgb(255, 255, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{658092a8-640a-4441-9971-fbf3cb62dffe}"
    }
  }
}