Generation Prompts

Historical. These are the prompts that produced the pack's original diffusion renders, which are archived outside this repo. The icons the pack ships today were redrawn as vector geometry and did not come from an image model — see metadata.md for what generated them.

• System Model: Gemini 3.5 Flash (concept + icon list)
• Format: ICO + PNG — .ico (Windows multi-size, transparent) + .png (1024x1024 RGBA)
• Icon Engine: Antigravity CLI (agy) OAuth image tool (free); google-genai gemini-3.1-flash-image SDK fallback
• Post-processing: rendered on a flat #FF00FF field, chroma-keyed to alpha, normalized to one pack-wide scale, cut to multi-size .ico via Pillow

Pack Prompt

You are a senior icon designer producing a commercial icon pack for Windows desktop and web use — the kind sold on Iconfinder or posted on DeviantArt, not a stock-illustration set.

Design a cohesive pack of 12 icons on the theme: Web Browsers — Chrome, Firefox, Edge, Safari, Brave, Opera, Vivaldi — squircle tiles.

What a pack is

A pack is one category of similar, nameable things, drawn in one shared visual system. Think "Brave, Chrome, Edge, Firefox, Opera, Safari, Vivaldi" — or "Box, Dropbox, Google Drive, iCloud, Mega, OneDrive" — or "Photoshop, Illustrator, Figma, Canva, Affinity Designer". Twelve members of the same family, each instantly identifiable, all cut from the same cloth.

Name the real things. If the theme is browsers, name the actual browsers. If it is AI coding tools, name Claude Code, Cursor, Copilot, Codex. If it is cloud storage, name the real services. A pack of abstract inventions ("Chroma Bell", "Nebula Cloud", "Prism Home") is a failure — that is not what this is for.

But design an original mark for each. Do NOT reproduce a company's trademarked logo. Take the product's idea — what it does, its colour, its silhouette — and draw a fresh symbol for it in the pack's style. A Dropbox icon is a box or a stack of blue facets; a terminal tool is a prompt caret; a vector editor is a pen nib on a path. The set should feel recognizable at a glance without copying anyone's artwork.

If a theme genuinely has no real-world members (e.g. "Website Page Icons — Cart, Checkout, Orders"), then the 12 members are the concrete pages or functions themselves, still named plainly.

The shared visual system

Pick ONE container shape for the whole pack and put every icon in it. Choose the value that fits the theme:

container	Use it for
squircle-tile	app icons, browsers, mobile/desktop apps, AI tools
folder-tab	anything described as a folder pack — Windows folder icons
circle-badge	social, profile, status, round-dock sets
rounded-square	system/utility/taskbar icons, settings panels
drive-block	storage, backup, drives, sync services
bare-glyph	page/UI icons meant to sit inline in a web layout

Inside that container, every icon shares one palette family, one level of detail, and one optical weight. The container never changes across the pack; only the symbol inside it does.

Return a JSON object

• "title" — a catchy name for the pack.
• "slug" — a kebab-case slug.
• "description" — 2-3 sentences on the pack's style and what it is for.
• "introduction" — a short intro paragraph for the pack's documentation.
• "metadata":
  • "style" — the visual style in a few words (e.g. "Flat vector with soft inner gradient").
  • "container" — exactly one of: squircle-tile, folder-tab, circle-badge, rounded-square, drive-block, bare-glyph.
  • "palette" — the shared colour family in a phrase (e.g. "saturated brand hues on a light neutral tile").
  • "keywords" — a list of 5 keywords.
• "icons" — a list of 12 objects, each with:
  • "name" — the thing itself, named plainly ("Firefox", "Google Drive", "Checkout").
  • "concept" — one line on what the symbol shows and why it reads as that thing.
  • "image_prompt" — a precise prompt for an image model describing this one icon: the container, the symbol inside it, the exact colours, and the level of detail. Describe flat vector artwork with hard clean edges. Do NOT describe photography, 3D renders, clay, glass on a table, studio lighting, cast shadows, reflections, or a background scene — a rendering contract is appended to your prompt automatically and will contradict you. Keep every icon's prompt phrased the same way so the twelve read as one set.
• "caption" — a short notification caption (e.g. "12 flat-vector browser icons in ICO and PNG.").

Every image_prompt must describe the same container, the same corner radius, the same scale, and the same lighting treatment. The only thing that varies between them is the symbol.

Rendering Contract (appended to every icon prompt)

--- HARD RENDERING CONTRACT (overrides everything above) ---
* Flat vector icon artwork, as if drawn in Figma or Illustrator. Hard clean edges, solid color fills. At most one soft inner highlight and one subtle inner gradient.
* This is NOT a photograph, NOT a 3D studio render, NOT clay/plasticine/plush, NOT glass sitting on a table. No depth of field, no bokeh, no reflections, no floor or ground plane, no cast shadow, no drop shadow, no glow outside the icon's own silhouette.
* BACKGROUND: one FLAT, UNIFORM, PURE #FF00FF MAGENTA field filling the entire canvas, edge to edge. Nothing touches it — no vignette, no gradient, no shading, no shadow spilling onto it. The magenta must be a single exact color so it can be keyed out.
* The icon is ONE single object, centered, viewed straight on — no perspective, no tilt, no rotation, no isometric angle. It occupies roughly 85% of the frame.
* CONTAINER: every icon in this pack sits in the SAME outer shape — a rounded-square (squircle) app tile with a consistent large corner radius — at the SAME size, SAME corner radius, and SAME orientation. Only the symbol inside it changes. Do not invent a different container for this icon.
* NO text, letters, numbers, labels, captions, percentages, chart axes, or UI chrome anywhere in the image.
* Square 1:1 canvas.

Individual Icon Prompts

Chrome

Flat vector icon of a three-segmented colorful pinwheel aperture (red, yellow, green) with a blue center circle, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Firefox

Flat vector icon of a sweeping fiery orange and gold crescent tail wrapping around a deep blue circle, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Edge

Flat vector icon of a stylized flowing ocean wave in a cyan and emerald green gradient, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Safari

Flat vector icon of a minimalist geometric compass with a red-and-white needle pointing northeast, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Brave

Flat vector icon of a stylized geometric lion's head shield in a bright orange and red gradient, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Opera

Flat vector icon of a bold glowing crimson-red ring with a modern dimensional slice, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Vivaldi

Flat vector icon of a sharp stylized geometric 'V' folded origami shape in a bright red gradient, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Tor Browser

Flat vector icon of a geometric onion silhouette composed of concentric purple and lavender layers, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Arc

Flat vector icon of a sleek neon archway looping vertically in a gradient of electric violet to bright teal, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

DuckDuckGo

Flat vector icon of a minimalist yellow duck profile inside a bright green protective shield, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Chromium

Flat vector icon of a three-segmented technical aperture in a monochromatic slate-blue and steel-gray gradient, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.

Orion

Flat vector icon of three interconnected glowing blue stars forming a minimalist constellation arc, centered on a matte dark-charcoal squircle tile. Clean geometric shapes, vibrant gradient, minimalist modern icon design. Isolated on a plain light grey background.