Examine source code of Relax 6

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Relax 6",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(235, 221, 228)",
      "toolbar_text": "rgb(174, 169, 170)",
      "frame": "rgb(174, 77, 122)",
      "tab_background_text": "rgb(230, 212, 223)",
      "toolbar_field": "rgb(246, 237, 241)",
      "toolbar_field_text": "rgb(164, 131, 148)",
      "tab_line": "rgb(224, 201, 206)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(224, 201, 206)"
    }
  }
}