Examine source code of Melody

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "melody",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png",
        "images/1.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top",
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat",
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(209, 101, 155, 0.58)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(249, 240, 235)",
      "tab_background_text": "rgb(17, 17, 17)",
      "toolbar_field": "rgba(248, 245, 240, 0.75)",
      "toolbar_field_text": "rgb(34, 34, 34)",
      "tab_line": "rgba(255, 255, 255, 0.61)",
      "popup": "rgb(249, 240, 235)",
      "popup_text": "rgb(34, 34, 34)",
      "icons_attention": "rgb(242, 126, 185)",
      "popup_border": "rgb(222, 222, 222)",
      "toolbar_field_border_focus": "rgb(215, 113, 165)",
      "tab_loading": "rgba(255, 255, 255, 0.61)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4c0320b5-48d3-4d07-a6d9-6fed81dcbb9a}"
    }
  }
}