Examine source code of Premium

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Premium",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(47, 173, 47)",
      "frame": "rgb(41, 145, 68)",
      "tab_background_text": "rgb(252, 252, 252)",
      "toolbar_field": "rgb(164, 193, 87)",
      "toolbar_field_text": "rgb(219, 255, 0)",
      "tab_line": "rgb(40, 12, 255)",
      "popup": "rgb(203, 130, 62)",
      "popup_text": "rgb(109, 96, 215)",
      "tab_loading": "rgb(40, 12, 255)"
    }
  }
}