# NeXTSTEP Interface (ネクストステップ・インターフェース) — image generation prompt
# IndexStyle No.517 — https://indexstyle.org/styles/nextstep-ui
# Style descriptors only. Never imitates a specific artist, studio, brand or work.

An original image in the visual language of NeXTSTEP Interface (Style, Platform Screen Languages, 1988–1997). Visual cues: A menu standing as a vertical column at the upper left, submenus attaching to its right; Square application icons docked in a vertical strip along the right edge of the screen; Thick bevels carved entirely from gray values, with no hue anywhere in them; A black title bar on the window taking keystrokes, dark gray on a window that is merely frontmost. Composition: Fix a vertical menu column at the upper left and a vertical icon strip at the right edge, and give the space between them to the work. Windows are meant to overlap, so a black title bar is the only marker of the one in hand.. Type and lettering: Run one Helvetica style face throughout and build hierarchy from weight and size alone. Leave unavailable commands in place in dark gray instead of removing them.. Material feel: Work in four steps from white to black and admit no hue. Assume one light source above, and keep every bevel consistent with it.. Mood: Technology, Calm, Luxury. Color cues: #AAAAAA, #555555, #000000.

Constraints: do not imitate, reference or name any specific artist, studio, brand, character or copyrighted work.
Produce an original composition that follows the general period style described above.
Full design spec: https://indexstyle.org/styles/nextstep-ui/design.md