Adds one curated first-party image prompt template to
`prompt-templates/image/`, with a matching preview JPG under
`assets/prompt-templates/image/`.
### New template
**`game-screenshot-anime-fighting-game-captain-ryuuga-vs-kaze-renshin.json`** —
A cinematic anime fighting-game key-visual / combat screenshot in the
style of *Street Fighter 6* or *Tekken 8* intro art. Two original
anime-styled male warriors face off at the center of a nighttime
Chinese temple courtyard:
- **Captain Ryuuga (P1)** — shirtless straw-hat pirate with a red
battle-scar, shark-tooth necklace, skull-pattern sash and a warm
orange-red fire aura.
- **Kaze Renshin (P2)** — spiky jet-black hair, orange martial-arts gi
with a single black kanji, charging a crackling blue lightning energy
sphere between his hands.
The background, lighting and warm-vs-cool color grading follow the
rival-fighter convention of the genre (orange left half, blue right
half). The template ships with a complete fighting-game HUD exposed as
slot-filled `{argument}` placeholders:
- Two horizontal health bars with round central round-timer and
`ROUND N` label, per-side HP-percent numerals.
- P1 / P2 portrait panels with character name + subtitle + emblem.
- Per-side `HITS COMBO` counters and max gauges (orange-left,
blue-right).
Ten `{argument}` slots in total make it easy to restyle the matchup
(swap the fighters, backdrop, round number, HP percents, combo counts,
names, titles and emblems) without rebuilding the HUD-and-render
boilerplate. Tuned for `gpt-image-2`, aspect `16:9`. Category: `Game UI`
(reuses the existing enum value introduced in #187; no new enum).
Carries `source.repo = nexu-io/open-design`, Apache-2.0, author
`open-design contributors`.
### Verification
- `node -e "JSON.parse(require('fs').readFileSync('prompt-templates/image/<file>.json','utf8'))"` passes on the new template.
- Slug does not collide with any existing template on `main` or in the
companion Three Kingdoms screenshot PR.
- Preview JPG is 679 KB, comparable to the previews landed in #187.
- `aspect = 16:9` matches the underlying 1792x1024 source render.
### Why
#187 anchored the `Game UI` category with a Chinese MMO HUD mockup.
The companion Three Kingdoms PR extends the category with AAA ARPG
combat-moment screenshots in the Black Myth: Wukong style. This PR
adds a third flavor — an **anime fighting game VS screen** — completing
a compact but representative seed set for the category:
- MMO HUD (UI-heavy scenic moment)
- AAA ARPG (character-driven cinematic combat)
- Anime fighting game (head-to-head VS key visual)
Together these cover three very different HUD conventions and three
different render styles, so downstream users approaching the Game UI
category have a real breadth of starting points to remix from — not
just one aesthetic.
Co-authored-by: Tuola Ge <gexingli@refly.ai>
