chromium/ios/chrome/browser/ui/omnibox/popup/resources/Assets.xcassets/omnibox_popout_overlay_color.colorset/Contents.json

{
  "info" : {
    "version" : 1,
    "author" : "xcode"
  },
  "colors" : [
    {
      "idiom" : "universal",
      "color" : {
        "color-space" : "display-p3",
        "components" : {
          "alpha" : "0.2",
          "red" : "0x00",
          "green" : "0x00",
          "blue" : "0x00"
        }
      }
    },
    {
      "idiom" : "universal",
      "appearances" : [
        {
          "appearance" : "luminosity",
          "value" : "dark"
        }
      ],
      "color" : {
        "color-space" : "display-p3",
        "components" : {
          "alpha" : "0.48",
          "red" : "0x00",
          "green" : "0x00",
          "blue" : "0x00"
        }
      }
    }
  ]
}