Bruce’s tip is worth a try. Download KeeUIExt, copy it to the KeePass Plugins folder, and restart. If it doesn’t touch the login window, that’s a limit of the plugin, not something you missed. Until then, a quicker way to use the magnifier: press Win and Plus to open it, Win and Esc to close. In Magnifier settings you can switch to lens mode, which only enlarges the area around your cursor. That’s easier than zooming the whole screen just to log in.