Scaling issue on high DPI displays

[mrihtar]

When I install FiddlerCert in the latest Fiddler Classic (v5.0.20204.45441 for .NET 4.6.1) on a laptop with Windows 10 Pro 20H2 and high DPI display (4K), it messes up scaling and the whole Fiddler GUI becomes unreadable. I normally use scaling 250% (as recommended by the system) and Fiddler with other extensions is OK with this scaling, except with FiddlerCert. The culprit seems to be the VCSJones.FiddlerCert.dll installed in the subdirectory Inspectors.

[ericlaw1979]

Passing the dpiaware argument on Fiddler's command line helps a little, but this doesn't seem to fix everything.