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Some System.Windows.Forms.Cursors values are extremely tiny in high DPI modes

About half the cursors available in System.Windows.Forms.Cursors reference system icons that scale appropriately, while the other half do not.

At a glance of the source code on referencesource.microsoft.com, it would appear the offenders are those which use "___.cur" resource names rather than resource IDs.

https://referencesource.microsoft.com/#System.Windows.Forms/winforms/Managed/System/WinForms/Cursors.cs

Among the problem cursors include the hand (used by LinkLabel) and hsplit/vsplit (used by SplitContainer). As a result, these controls become very difficult to use on 4k screens using 300%+ DPI.

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