Examine source code of 2019/2020

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "2019/2020",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(95, 94, 107, 0)",
      "toolbar_text": "rgb(235, 21, 235)",
      "frame": "rgb(17, 16, 14)",
      "tab_background_text": "rgb(240, 2, 247)",
      "toolbar_field": "rgba(218, 15, 212, 0.5)",
      "toolbar_field_text": "rgb(243, 243, 8)",
      "tab_line": "rgb(236, 53, 26)",
      "popup": "rgb(18, 4, 109)",
      "popup_text": "rgb(252, 6, 217)",
      "tab_loading": "rgb(236, 53, 26)"
    }
  }
}