Captions with no style set: Korean gets black-outline, no gold tint

If you send no style, Sume picks one from the caption text, and the spoken word gets no gold tint. Set design.colors.active to add one.

4 min readSume
All posts

If you send no style to Sume video captions, the caption text decides it: slam for Latin text, black-outline for Korean. The default render also has no accent color. The docs say the two default styles carry a gold tint on the spoken word in their original design, but Sume does not add a tint to a look you did not select. Set design.colors.active if you want one.

What you get

Korean text does not resolve to the Latin default, because that would burn Korean as tofu. It also does not resolve to korean-ad. If you want the ad karaoke look, select korean-ad yourself.

Default caption behavior when style is omitted, per the Sume video-captions page (read 2026-10-05)
TextStyle resolvedSpoken-word color
LatinslamFill color, no gold tint
Koreanblack-outlineFill color, no gold tint
Any, with style set to slam or black-outlineAs selectedStyle keeps its own gold tint

Add a tint on a default render

design.colors.active sets the tint in both cases, and Sume merges it over the style's value. This request burns black-outline with a cyan emphasis, and every other value of the style stays.

{
  "video_url": "https://example.com/clean.mp4",
  "style": "black-outline",
  "design": { "colors": { "active": "#22D3EE" } }
}

Things to keep straight

  • language is a speech-to-text hint. It never picks the style or the font.
  • font is only for Hangul styles, and a Hangul face with a Latin style returns 400 caption_font_requires_hangul_style.
  • Korean text on slam, punch or tiktok-green returns 400 caption_hangul_text_latin_style. Sume does not swap the style for you.
  • The price is the same for any style, so a wrong look is a retry cost, not a discount.

Sources

Related posts

More in Media tools

All Media tools posts

Written by Sume