[issue41548] IDLE Window rendering on macOS Big Sur

Ned Deily added the comment: OK, I can reproduce the window resizing stuttering on macOS 11 Big Sur (Intel) Developer Beta 4 using the most recent python.org Python 3.8.5 binary installer; the stuttering does not occur with macOS 10.5.6 Catalina or earlier systems. We have been using an olde

[issue41548] IDLE Window rendering on macOS Big Sur

Ned Deily added the comment: Thanks for your report. The screen capture link is not publically available (requires a login). Please find another way to provide it; you can upload and attach an image file to this issue ("Choose File" button). Also, please provide the complete Python version

[issue41548] IDLE Window rendering on macOS Big Sur

Roger Meier added the comment: I have screen capture demonstrating the issue, which I posted here: https://groups.google.com/g/thonny/c/529A5zEsuWg/m/xHVCny8OBwAJ -- type: -> behavior ___ Python tracker __

[issue41548] IDLE Window rendering on macOS Big Sur

New submission from Roger Meier : macOS Big Sur, Public Beta (20A5343j) There is noticeable window flickering when the IDLE window is being resized manually. It sometimes become translucent, and sometimes the window frame isn't properly refreshed after resizing, but simply by switching to ano