This page exists to test various icon sizes for home screen pinning. Select a page from below, and add it to your home screen from the browser menu. Check the home screen to see if the icon is shown, or if Chromium generated an icon (likely an 's') instead:

Whether or not the associated icon will be used may depend on your device's pixel ratio. Your device has a pixel ratio of . Based on this, Chromium will only permit a home screen icon if it's larger than 48dp (or pixels). See dimens.xml for more information.

Also worth a note is this question on Stack Overflow, and Chromium's source at add_to_homescreen_data_fetcher.cc and the GetLargestFaviconForUrl method.

The following images will be shown on their corresponding page: