Examine source code of Synths Are Solace (Rose)

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Synths Are Solace (Rose)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right bottom"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(225, 234, 239, 0.68)",
      "toolbar_text": "rgb(142, 3, 37)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(251, 251, 251)",
      "toolbar_field": "rgb(200, 222, 232)",
      "toolbar_field_text": "rgb(193, 43, 132)",
      "tab_line": "rgb(248, 112, 138)",
      "popup": "rgb(57, 93, 189)",
      "popup_text": "rgb(232, 210, 212)",
      "button_background_active": "rgba(90, 90, 90, 0.24)",
      "button_background_hover": "rgb(214, 116, 116)",
      "tab_loading": "rgb(248, 112, 138)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{aead2c4d-98cb-42b2-a7e6-fe20936f7a83}"
    }
  }
}