{"id":"amiga-workbench","no":518,"name":"Amiga Workbench","ja":"アミガ・ワークベンチ","era":"1985–1996","family":"プラットフォームの画面言語","kind":"スタイル","collection":"Dictionary expansion 26","addedAt":"2026-08-19","source":{"title":"Internet Archive — Commodore-Amiga, Inc., \"Amiga User Interface Style Guide\" (1991)","url":"https://archive.org/details/amiga-user-interface-style-guide"},"reference":{"status":"verified","pageUrl":"https://archive.org/details/amiga-user-interface-style-guide","credit":"Internet Archive — Commodore-Amiga, Inc., \"Amiga User Interface Style Guide\" (1991)","gallery":[{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Amiga%20Workbench%201.x.png?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Amiga%20Workbench%201.x.png","credit":"《Amiga Workbench 1.x の画面》1985年 — Wikimedia Commons / CC BY-SA 4.0"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Go-64!%20version%202.0%20floppy%20disk%20contents.png?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Go-64!%20version%202.0%20floppy%20disk%20contents.png","credit":"The Maddestman《Workbench 1.2 のドロワー窓》2017年 — Wikimedia Commons / CC BY-SA 4.0"},{"imageUrl":"https://commons.wikimedia.org/wiki/Special:FilePath/Amiga%20Workbench%203.1%20screenshot.png?width=640","pageUrl":"https://commons.wikimedia.org/wiki/File:Amiga%20Workbench%203.1%20screenshot.png","credit":"Chiffre01《Amiga Workbench 3.1 の画面》2018年 — Wikimedia Commons / CC BY-SA 4.0"}]},"essence":"Commodore が自社のスタイルガイドで規定した Amiga の画面言語。初期は青地に白とオレンジの四色だけで組み、角ばったビットマップ書体 Topaz が 640×200 の格子に詰まる。窓ではなく画面そのものが層で、上端のバーを引き下ろすと後ろの画面が現れる。","cues":["青地に白とオレンジ、四色しか使わない画面","角ばったビットマップ書体が 640×200 の粗い格子に詰まる","画面の上端を全幅のタイトルバーが走り、右端に前後を入れ替えるガジェットが並ぶ","有効な部品は左上が明線・右下が暗線で浮き、押すと明暗が反転して沈む"],"intents":["遊び","技術","懐かしさ"],"works":["1980年代の家庭用コンピュータの画面を、Mac でも Windows でもない第三の系譜として作り直すとき","使える色が四つしかない条件で、色ではなく明暗の反転だけで押下と無効を伝えたいとき"],"recipe":{"type":"等幅のビットマップ書体を等倍で置き、拡大も補間もしない。文字の高さを8px前後に固定し、行間は詰める。","layout":"画面の上端に全幅のタイトルバーを一本通し、その下を窓で埋める。窓は自由に重ねてよいが、画面そのものは重ならず上下に滑る層として扱う。","material":"四色の組を先に決め打ちする。立体は面取りではなく1pxの明線と暗線で作り、光源は常に左上に固定する。押下時は明線と暗線を入れ替える。"},"avoid":"色数を増やして四色の枠を崩すと、明暗の対比だけで押下と無効を伝えていた仕組みが働かなくなり、単色や灰階調の表示では部品の区別がつかなくなる。","colors":["#0055AA","#FF8800","#FFFFFF"],"motif":"graphic","pair":["demoscene","pixel-art"],"study":["Amiga User Interface Style Guide のスクリーンとガジェットの章","Release 2 で規定された、光源を左上に置く立体表現の作法","Workbench の四色パレットが Amiga の表示ハードウェアの何に由来するか"],"en":{"essence":"The screen language Commodore set down for the Amiga in its own style guide. Early Workbench works in four colors, blue with white and orange, and packs Topaz, a blocky bitmap face, into a 640 by 200 grid. Its signature move is that the screen itself is a layer, so grabbing the bar at the top and dragging it down reveals another screen running behind it with its own palette and resolution.","cues":["A screen that uses four colors and no more, which are blue, white, orange and black","A blocky bitmap face packed into a coarse 640 by 200 grid","A full width title bar running across the top of the screen, with depth gadgets at its right end","Live controls raised by a light line at the top left and a dark line at the bottom right, inverting to a sunken state when pressed"],"works":["Rebuilding a 1980s home computer screen as the third lineage, neither Macintosh nor Windows","Working under a four color limit where press and disabled states have to be carried by inverted light and dark rather than by hue"],"recipe":{"type":"Set a monospaced bitmap face at its native size with no scaling and no smoothing. Fix the cap height around eight pixels and keep the leading tight.","layout":"One full width title bar runs across the top of the screen and windows fill the space below. Windows may overlap freely, but screens never do, since they slide vertically as whole layers.","material":"Fix the four color set before anything else. Build depth from a one pixel light line and a one pixel dark line rather than a gradient, keep the light source at the top left, and swap the two lines for the pressed state."},"avoid":"Adding colors past the four breaks the very mechanism that carried press and disabled states, because those were read as contrast in brightness, and the controls become indistinguishable on a monochrome or grayscale display.","study":["Amiga User Interface Style Guide のスクリーンとガジェットの章","Release 2 で規定された、光源を左上に置く立体表現の作法","Workbench の四色パレットが Amiga の表示ハードウェアの何に由来するか"]}}