macOS: Option-generated characters are sent as Meta (ESC prefix)

[bassepeder]

macOS Tahoe 26.5.1
Norwegian keyboard layout

cool-retro-term 1.2.0:

• ⌥⇧8 sends ESC + { (0x1b 0x7b)

kitty on the same machine:

• { sends 0x7b
• cursor shape works

Reproduced with:
cat | od -An -tx1