Examine source code of Colourful Sweet

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sweet Candy",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(32, 197, 228)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(165, 70, 201)",
      "tab_background_text": "rgb(244, 232, 120)",
      "toolbar_field": "rgb(190, 17, 191)",
      "toolbar_field_text": "rgb(230, 169, 247)",
      "tab_line": "rgb(28, 88, 185)",
      "popup": "rgb(229, 10, 167)",
      "popup_text": "rgb(244, 232, 120)",
      "tab_loading": "rgb(28, 88, 185)"
    }
  }
}