Bug: Border radius has infected VSCode editor

Does this issue occur when all extensions are disabled?: Yes/No
Yes

• VS Code Version: 1.139.0 (Universal)
• OS Version: 26.5.1 (25F80)

Steps to Reproduce:

1. Open VSCode
2. Your editor is now infected with border radius

The VSCode editor has been infected with border radius. The text editor, the file explorer, terminal and copilot chat all have a horrendous case of border radius. I can no long work efficiently with these redundant curves attracting my attention. I thought my desktop apps were safe from this scourge of border radius infecting web. The plague of border radius has spread to my code editor.

Please help!