Measurement not correct on MacOS

I just executed your example app and it has exact the half size of the actual size on my primary display (in a multi display setup):

In the multi monitor setup the build in screen as secondary screen

Here is the "hot reloaded" window from my build in display

It seems that this doesn't work so well.

The issue names no source file or test; start by reproducing the example app on macOS with the reported multi-display setup and trace the plugin's physical-size measurement path. Done means the measured dimensions match the actual display size on both the primary and built-in screens.

Written by the indexing model from the issue text.