chromium/ios/chrome/browser/tabs/ui_bundled/resources/Assets.xcassets/tabstrip_background_tab.imageset/Contents.json

{
    "images": [
        {
            "idiom": "ipad",
            "scale": "2x",
            "filename": "tabstrip_background_tab@2x~ipad.png",
            "resizing" : {
              "mode" : "3-part-horizontal",
              "center" : {
                "mode" : "tile",
                "width" : 1
              },
              "cap-insets" : {
                "left" : 68,
                "right" : 67
              }
            }
        },
        {
          "idiom" : "universal",
          "scale" : "2x",
          "filename" : "tabstrip_background_tab_dark@2x~ipad.png",
          "resizing" : {
            "mode" : "3-part-horizontal",
            "center" : {
              "mode" : "tile",
              "width" : 1
            },
            "cap-insets" : {
              "left" : 68,
              "right" : 67
            }
          },
          "appearances" : [
            {
              "appearance" : "luminosity",
              "value" : "dark"
            }
          ]
      }
  ],
    "info": {
        "version": 1,
        "author": "xcode"
    }
}