화면 배경 이미지 — 플레이스홀더 & 생성 프롬프트

용도: UX_SCREENS.md §8.1에 무드만 정해두고 실제 배경 PNG가 아직 없는 화면들의 목록. 코드에는 우선 팔레트 그라디언트로 만든 플레이스홀더만 넣어뒀고(game.css), 각 항목마다 실제 이미지를 만들 때 쓸 생성 프롬프트를 미리 적어둔다.

정책 주의 — ASSET_SOURCES.md: 배경 이미지는 원칙적으로 CC0/직접 제작만 허용(AI 일괄 생성 금지). 아래 프롬프트는 그 규칙의 예외가 아니라 §2.5 Draw Things 로컬 초안 절차용이다 — 프롬프트로 만든 결과물은 반드시 reference/drawthings/에 먼저 저장하고 사용자 검수를 거친 뒤에만(그대로 쓰거나, 팔레트에 맞게 픽셀화/보정해서) public/assets/에 반영한다. 검수 결과 CC0 팩으로 대체하기로 결정해도 무방하다. 프롬프트는 Draw Things/Gemini 등에 그대로 붙여 쓸 수 있게 영어로 적었다.

사용법

아래 표에서 화면 ID로 항목을 찾는다.
프롬프트를 Draw Things(scripts/drawthings/cli-img2img.sh 또는 txt2img) / Gemini에 입력해 초안 생성.
결과를 packages/client/public/assets/reference/drawthings/bg-<screen>.png에 저장 → 사용자 검수.
승인되면 packages/client/public/assets/backgrounds/<screen>.png로 옮기고, game.css의 해당 /* placeholder — ... */ 주석 바로 아래 규칙에 background-image: url(...)을 추가해 그라디언트 플레이스홀더를 대체한다.

MVP 화면 (지금 플레이스홀더 CSS 있음)

화면	CSS 클래스	무드 (§8.1)	생성 프롬프트
`title`	`.cf-title-scene` → `bg-title.png`	황혼 계곡 원경 — 좌 아카데미·우 봉인의 탑 (LANDMARKS.md)	랜드마크 2종 잠금 후 합성: `reference/landmarks/chaosforge-academy.png`, `seal-spire.png` → `bg-title.png` (`--ref` academy). 프롬프트: `wide dusk valley title screen, academy left mid-ground, sealed spire right horizon, abyss blue mist, NO lava/ember hellscape, no characters, no text, 16:9`
`trialPrep`	`.cf-trial-prep-scene`	시련 문 안쪽 대기실, 챕터별 바이옴 프리뷰 창	`dark stone antechamber inside a sealed academy trial gate, single arched viewport glowing with a distant ember-caverns biome, minimal props, low warm rim light, abyss-blue base tones, pixel-art game background, no characters, no text, wide 16:9`
`run` `prep`/`shop`	`.cf-run-scene`	첨탑 내부 봉인층, 은은한 유적 벽면 텍스처	`subtle worn stone rune-wall texture, dark slate tones, faint glowing grid-line etchings, flat lighting suitable as a UI backdrop behind a grid inventory, no characters, no strong focal point, seamless-ish, wide 16:9`
`run` `battle` (Ember Caverns, Ch.1)	Pixi 캔버스 배경 (`BattlePixi.ts`)	Ember 바이옴 원경+안개	`molten ember cavern battle backdrop, glowing lava veins in rock walls, drifting embers and haze, dark red-orange palette, layered depth (far silhouette / mid haze), no characters, pixel-art game background, wide 16:9`
`run` `battle` (Gale Cliffs, Ch.2)	Pixi 캔버스 배경 (`BattlePixi.ts`)	Gale 바이옴 원경+안개	`windswept cliffside battle backdrop at dusk, pale blue-grey sky, drifting fog and leaves, layered depth (far silhouette / mid haze), no characters, pixel-art game background, wide 16:9`

Phase 2 / 2.5 화면 (아직 구현 안 함 — 프롬프트만 선점)

화면	무드 (§8.1)	생성 프롬프트
`academyHub`	아카데미 안뜰, 황혼, 시련 문에서 빛 새어나옴	`academy courtyard at dusk, four small guild-hall buildings around a glowing sealed trial gate, warm window lights, stone path foreground, painterly pixel-art game background, no characters, wide 16:9`
`roster`	소집 책상 · 아카데미 사무실(창·책상·초상·배너) — ✅ `bg-roster.png` 반영	`warm Imperial Academy muster office at golden hour, large arched windows with sunset sky, oak desks with open ledgers quills and maps, hanging lanterns, framed living officer portraits and blue-gold banners on plaster walls, no tomb niches no columbarium no memorial plaques, no characters in room, no text, painterly game background, wide 16:9`
`goldShop`	상인 매대, 화사한 조명	`cozy merchant stall interior, warm wooden shelves lit by hanging lanterns, brighter and more cheerful than a dungeon, no characters, pixel-art game background, wide 16:9`
`questBoard`	게시판 코르크/석판 + 압정 — ✅ `bg-quest-board.webp` 반영	`stone quest board wall covered in pinned parchment notes, dim torch light, no characters, no readable text, pixel-art game background, wide 16:9`
`codex`	서고, 책장·유물 진열대 — ✅ `bg-codex.webp` 반영	`dim archive library interior, tall bookshelves and glass relic display cases, single blue accent glow from an artifact case, no characters, pixel-art game background, wide 16:9`

배경 불필요 (§8.1 명시)

settings · leaderboard · result · run reward/blessing — 단색 배경 + 비네트만 유지(이미 구현됨). 별도 이미지 제작 불필요.

유적 전용 아이템 아이콘 (초안 — 생성 명령 실행 전)

스타일 공통: single game item icon, centered, transparent background, stylized pixel-art, no text, no character, one object only

id	single-object prompt (초안)
`oopart.foundry.overdrive_joint`	brass and copper overdrive joint with exposed gear teeth, ember glow seams, satchel oopart icon
`oopart.foundry.heat_sink_spine`	ribbed heat-sink spine plate with cooling fins and faint orange heat shimmer
`item.foundry.gearblade`	short sword with interlocking gear segments along the blade, foundry soot
`item.foundry.articulated_coil`	coiled spring accessory with hinged brass links
`item.foundry.overload_damper`	heavy armor plate with pressure relief valves and scorch marks
`oopart.reliquary.echo_cistern`	ornate cistern jar with ochl condensation beads, reliquary patina
`oopart.reliquary.return_valve`	brass return valve with twin spouts and teal flow lines
`item.reliquary.condenser_core`	crystal condenser core in bronze housing, dripping condensed light
`item.reliquary.resonance_plate`	thin resonant chest plate with engraved wave lines
`item.reliquary.portable_still`	small alchemical still with coiled tube and flask
`oopart.menagerie.incubator_gland`	bio-mechanical incubator gland bulb with green culture fluid
`oopart.menagerie.symbiote_lattice`	lattice accessory woven from symbiotic filaments and tiny nodes
`item.menagerie.culture_cradle`	sterile culture cradle dish with clamp arms
`item.menagerie.specimen_hook`	specimen hook tool with barbed tip and lab grip
`item.menagerie.sealing_clamp`	quarantine sealing clamp with rubberized jaws
`oopart.observatory.prismatic_focus`	prismatic focus lens on a void-tinted mount, rainbow edge refraction
`oopart.observatory.mana_astrolabe`	mana astrolabe ring instrument with floating arc ticks
`item.observatory.void_lens`	void lens monocle artifact with purple inner glow
`item.observatory.channel_rod`	channeling rod staff tip with elemental conductor lines
`item.observatory.tidal_charm`	tidal charm pendant with wave-shaped gem
`oopart.bastion.aegis_vertebra`	segmented aegis vertebra shield spine, bone-steel fusion
`oopart.bastion.oath_censer`	oath censer thurible with chain and faint protective smoke
`item.bastion.gate_shield_fragment`	fractured gate shield chunk still bearing heraldry emboss
`item.bastion.reliquary_plate`	reliquary chest plate with inset saint relic slot
`item.bastion.warden_sigil`	warden sigil medal with bastion gate motif

유적 강화 소재 아이콘 (승인 2026-07-22)

스타일: manifest item-manifest.json — DT reference 승인 후 process-items.py (rembg birefnet-general) → promote-ruin-materials.py → sprites/items/materials/mat_ruin_*.webp.

materialId	single-object prompt (초안)	reference (승인본)
`mat.ruin.ember_foundry`	refined ember foundry slag chunk with orange heat seams	`items/item_ruin_material_ember_foundry.webp`
`mat.ruin.sunken_reliquary`	amber reliquary resin nodule with teal flow veins	`items/item_ruin_material_sunken_reliquary.webp`
`mat.ruin.verdigris_menagerie`	stabilized verdigris menagerie culture sample in glass ampoule	`items/item_ruin_material_verdigris_menagerie.webp`
`mat.ruin.hollow_observatory`	hollow observatory lens dust in void-tinted glass vial	`items/item_ruin_material_hollow_observatory_v2.webp` (v1 거절)
`mat.ruin.ossuary_bastion`	calcified ossuary bastion ash in stone mortar	`items/item_ruin_material_ossuary_bastion.webp`

거절 reference (runtime·rembg 승격 금지): items/item_ruin_material_hollow_observatory.webp (v1).