WinUI 2 Gallery makes all controls's corner radius 8, deviating from fluent design spec

[roxk]

Describe the bug
WinUI 2 Gallery is overriding ControlCornerRadius in App.xaml, causing all controls to have a corner radius of 8.

Steps to reproduce the bug
Just launch the app and observe button or check boxes.

Expected behavior
ControlCornerRadius stays at 4. If some specific control needs to have a corner radius of 8, customize the resources only for that control.

Actual behavior

Screenshots

You can see WinUI 2's button is rounder, whereas WinUI 3 is "normal", having a corner radius of 4, as defined in WinUI 2.6+ styles.

Gallery version (found on Settings page):
WinUI 2 Gallery 1.2.24.0

Windows 10 version:

• Insider Build (22621.1)
• November 2019 Update (18363)
• May 2019 Update (18362)
• October 2018 Update (17763)
• April 2018 Update (17134)
• Fall Creators Update (16299)
• Creators Update (15063)
• Anniversary Update (14393)
  (Shouldn't the template be updated to say Windows 11?)

Device form factor:

• Desktop
• Mobile
• Xbox
• Surface Hub
• IoT

Additional context
A UWP community member @yoshiask noticed that the change is introduced in 4fea127, and his guess for the bug is, lemme quote:

Most everything else in that commit is related to the tiles on the home page. I'm guessing they wanted to change the corner radius for those tiles, but instead changed it for literally every control

If this is indeed the case, simply moving the ControlCornerRadius override to HeaderTiles.xaml should fix it while keeping the desired behavior.

[dongle-the-gadget]

Looks like this is fixed.

LOL