Add Myanmar (Burmese) font support

[ShaungBhone]

Pre-submit Checks

• I have searched Warp feature requests and there are no duplicates
• I have searched Warp docs and my feature is not there

Describe the solution you'd like?

Warp cannot display Burmese/Myanmar text properly. Need to add Myanmar font support to the font bundle.

Solution: Add Myanmar font (e.g., Noto Sans Myanmar) to font bundle and fallback font system.

Is your feature request related to a problem? Please describe.

When typing Burmese: မြန်မာ - displays as boxes/garbled

Additional context

No response

Operating system (OS)

macOS

How important is this feature to you?

3

Warp Internal (ignore) - linear-label:39cc6478-1249-4ee7-950b-c428edfeecd1

None

[oz-for-oss]

@ShaungBhone

Here's what I found while triaging this issue:

This looks like a real gap in Warp's fallback font coverage rather than a settings issue. A screenshot would help confirm whether the symptom is missing-glyph boxes or a shaping/rendering problem.

I have a few follow-up questions before I can narrow this down:

1. Could you attach a screenshot or short recording showing how မြန်မာ appears in Warp?
2. Which Warp version/channel and macOS version are you using?

Reply in-thread with those details and the triage workflow will automatically re-evaluate the issue and update the diagnosis, labels, and next steps.

Maintainer details

I concluded that myanmar/Burmese text rendering appears to be missing from Warp's fallback font coverage, so Burmese characters can render as boxes or garbled text on macOS..

Triage summary

This looks like an enhancement/rendering gap for Burmese/Myanmar text in terminal input or output on macOS. The reported sample မြန်မာ uses Myanmar-script characters, and the current fallback-font mapping includes several Noto script families but no Myanmar fallback family or Myanmar Unicode block mapping.

Reproducibility

Medium. The report gives a concrete sample string and the codebase supports the hypothesis that Myanmar is missing from Warp's fallback coverage, but there is no screenshot/video, Warp version, or macOS version yet to confirm the exact visual failure mode.

Likely root cause

app/src/font_fallback.rs defines the app-provided external fallback families and maps Unicode ranges to those families; Myanmar is absent. crates/warpui_core/src/fonts/external_fallback.rs only requests an app fallback when that map returns a family. On macOS, crates/warpui/src/platform/mac/fonts.rs builds fallback fonts from CoreText's English cascade and filters loaded system fonts to fonts that support English, so Myanmar-specific fonts may not be reachable unless explicitly routed. The likely implementation path is to add a Noto Sans Myanmar fallback asset/family and update the generated fallback mapping scripts/output.

Duplicate check

I searched all open issues with pagination, excluding this issue, and checked recently closed/updated issues. Existing issues such as #789 and #5811 overlap broadly with font fallback customization, but I did not find 2+ existing issues requesting the same Myanmar/Burmese font support, so I am not marking this as a duplicate.

Question reasoning

1. Could you attach a screenshot or short recording showing how မြန်မာ appears in Warp? — Visual evidence is needed to distinguish missing-glyph boxes from Myanmar shaping or cluster rendering issues, which may require different fixes.
2. Which Warp version/channel and macOS version are you using? — The issue template only says macOS; exact versions help maintainers confirm whether this is current fallback behavior and reproduce against the same platform context.

This is my automated analysis and may be incorrect. A maintainer will verify the details.

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