Examine source code of Fiesta Colors Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Fiesta Colors Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.52)",
      "toolbar_text": "rgba(0, 93, 96, 0.62)",
      "frame": "rgb(142, 179, 201)",
      "tab_background_text": "rgb(157, 218, 229)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(215, 127, 200)",
      "tab_line": "rgb(252, 0, 220)",
      "popup": "rgb(255, 238, 211)",
      "popup_text": "rgb(155, 87, 145)",
      "tab_loading": "rgb(252, 0, 220)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{29d03cb9-fe44-44ad-9f55-3ad6a7c89dce}"
    }
  }
}