Examine source code of idx Blues

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "idx Blues",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-037-b73f9b34467ba541de861f5b4c0c6316.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(39, 58, 74)",
      "toolbar_text": "rgb(198, 205, 213)",
      "frame": "rgb(53, 74, 99)",
      "tab_background_text": "rgb(159, 169, 176)",
      "toolbar_field": "rgb(212, 219, 225)",
      "toolbar_field_text": "rgb(17, 18, 24)",
      "tab_line": "rgb(35, 114, 207)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(60, 59, 66)",
      "tab_loading": "rgb(35, 114, 207)"
    }
  }
}