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Reset highlight foreground (OSC 119)
ESC ] 119 BELOSC 119 resets the selection highlight foreground color to the terminal's default. The sequence is
ESC ] 119 BEL. The highlight foreground is set via OSC 19. Like OSC 117, this is part of the xterm extended color reset protocol. Support is primarily in xterm itself, with partial adoption in other terminals that implement the full xterm color management suite.How this is testedautomated
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OSC 119 BEL and verify the terminal remains responsive (sequence consumed without error).The same probe runs against headless backends (via Termless) and real terminal apps (via a daemon launched in each terminal). This lets us distinguish parser correctness from rendering correctness.
Analysis2026-04-06
Supported by all 4 tested terminals — universal adoption. Part of the Rich TUI baseline.
Supported by 14 of 14 backends (100%)
Terminal Applications
| Terminal | Version | Support | Notes |
|---|---|---|---|
| iTerm2 | 3.6.9 | ✓ yes | |
| Ghostty | 1.3.1 | ✓ yes | |
| VS Code | ✓ yes | ||
| Warp | ✓ yes | ||
| Cursor | ✓ yes | ||
| Terminal.app | ✓ yes |