As yawning noted in legacy/trac#17550 the default GUI font changed across Windows versions: * Windows XP -> `MS UI Gothic` (Not sure if this needs to be localized, don't have a box with this) * Windows Vista/7 -> `メイリオ` * Windows 8/8.1 -> `Meiryo UI` * Windows 10 -> `Yu Gothic UI` This might aid in fingerprinting JA users which are on Windows.