Examine source code of Sims 4 UI (2022)

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sims 4 UI (2022)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(243, 244, 247, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(255, 255, 255)",
      "tab_background_text": "rgb(199, 227, 234)",
      "toolbar_field": "rgba(255, 255, 255, 0.2)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgba(255, 255, 255, 0)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "icons_attention": "rgb(81, 201, 236)",
      "ntp_background": "rgb(255, 255, 255)",
      "popup_border": "rgba(0, 0, 0, 0)",
      "tab_loading": "rgb(93, 234, 2)",
      "tab_selected": "rgb(237, 237, 237)",
      "tab_text": "rgb(14, 0, 177)",
      "toolbar_bottom_separator": "rgba(255, 255, 255, 0.5)",
      "toolbar_field_border_focus": "rgb(255, 255, 255)",
      "toolbar_field_border": "rgba(255, 255, 255, 0.1)",
      "toolbar_field_focus": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(14, 0, 177)",
      "toolbar_field_text_focus": "rgb(14, 0, 177)",
      "toolbar_top_separator": "rgba(255, 255, 255, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{2d46a6c6-385f-4fae-a56d-906d25811ebb}"
    }
  }
}