Issue Type

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• Bug Report

• Successfully reproduced against the latest version of NW.js?

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Current/Missing Behavior

When opening a window with frame: false and resizable: false, the rounded corners that are applied to windows in windows 11 disappear. They work fine when either of these options are set to true.

Expected/Proposed Behavior

Windows 11 rounded corners work regardless of frame and resizable options. An option to specify whether or not to disable them could also be a consideration.

Additional Info

• Operating System: Windows 11 x64
• NW.js Version: 0.83.0
• Code snippet: nw.Window.open('index.html', { frame: false, resizable: false});

Possibly related to #8153