Examine source code of Half dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "hadi's Theme",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-036-40a272fe657f748396e017c7a64ee2dc.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgb(27, 170, 177)",
      "frame": "rgb(22, 54, 75)",
      "tab_background_text": "rgb(148, 157, 173)",
      "toolbar_field": "rgba(0, 0, 0, 0.2)",
      "toolbar_field_text": "rgb(253, 0, 151)",
      "tab_line": "rgb(28, 171, 176)",
      "popup": "rgb(22, 54, 75)",
      "popup_text": "rgb(251, 131, 165)",
      "button_background_active": "rgb(119, 21, 91)",
      "frame_inactive": "rgb(22, 54, 75)",
      "icons": "rgb(28, 171, 176)",
      "ntp_background": "rgb(22, 54, 75)",
      "ntp_text": "rgb(226, 85, 85)",
      "popup_highlight_text": "rgb(119, 21, 91)",
      "sidebar_highlight_text": "rgb(226, 85, 85)",
      "sidebar_text": "rgb(119, 21, 91)",
      "tab_loading": "rgb(28, 171, 176)"
    }
  }
}