Examine source code of Purple Night ++

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Morado_Noche_2",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-026-829b05416f823e170310e7c826ad1bec.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(60, 2, 91)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(74, 74, 74)",
      "tab_background_text": "rgb(198, 209, 222)",
      "toolbar_field": "rgb(216, 211, 248)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(182, 75, 244)",
      "popup": "rgb(28, 1, 59)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_hover": "rgb(84, 0, 121)",
      "icons": "rgb(252, 0, 255)",
      "popup_highlight": "rgb(112, 15, 174)",
      "tab_loading": "rgb(33, 255, 0)",
      "toolbar_field_border": "rgb(182, 75, 244)"
    }
  }
}