Examine source code of Knight (Elden Ring theme)

{
  "manifest_version": 2,
  "version": "3.0",
  "name": "Knight (Elden Ring theme)",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(6, 23, 21, 0.31)",
      "toolbar_text": "rgb(164, 195, 191)",
      "frame": "rgb(6, 23, 21)",
      "tab_background_text": "rgb(164, 195, 191)",
      "toolbar_field": "rgba(6, 23, 21, 0.25)",
      "toolbar_field_text": "rgb(164, 195, 191)",
      "tab_line": "rgba(164, 195, 191, 0.4)",
      "popup": "rgb(230, 250, 250)",
      "popup_text": "rgb(6, 23, 21)",
      "button_background_active": "rgba(164, 195, 191, 0.4)",
      "button_background_hover": "rgba(164, 195, 191, 0.4)",
      "icons": "rgb(164, 195, 191)",
      "tab_text": "rgb(164, 195, 191)",
      "toolbar_bottom_separator": "rgb(164, 195, 191)",
      "toolbar_field_border": "rgba(164, 195, 191, 0.25)",
      "toolbar_top_separator": "rgba(164, 195, 191, 0.25)",
      "toolbar_vertical_separator": "rgba(164, 195, 191, 0.25)",
      "tab_loading": "rgba(164, 195, 191, 0.4)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8c643be4-2822-43be-9a6e-5e28521f4887}"
    }
  }
}