Examine source code of Ui Dark Theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ui Dark Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "left top"
      ],
      "additional_backgrounds_tiling": [
        "repeat-x"
      ]
    },
    "colors": {
      "toolbar": "rgb(78, 78, 78)",
      "toolbar_text": "rgb(171, 171, 171)",
      "frame": "rgb(5, 6, 7)",
      "tab_background_text": "rgb(212, 212, 255)",
      "toolbar_field": "rgba(52, 52, 52, 0.16)",
      "toolbar_field_text": "rgb(153, 153, 153)",
      "tab_line": "rgb(157, 157, 157)",
      "popup": "rgb(68, 68, 139)",
      "popup_text": "rgb(98, 102, 183)",
      "tab_loading": "rgb(157, 157, 157)"
    }
  }
}