name: thumbnail-prompt description: Generate a ready-to-paste image-model prompt (Gemini, DALL·E, Midjourney, etc.) for a bold, Neon-style social thumbnail — a blog OG image, newsletter card, or launch banner. Use whenever the user asks for a "thumbnail", "social card", "cover image", "OG image", or "banner" prompt in the dev-tool aesthetic: a dot-grid gradient background, a bold white headline on a solid color block, one hero illustration or code window on the right, and a brand logo locked to the top-left. Works for any brand; defaults to the Grit framework.

Neon-style thumbnail prompt generator

Produce a single, copy-paste-ready prompt for an image model that renders a premium developer-tool social card — the look pioneered by Neon, Vercel, and Linear blog cards. The user pastes the prompt into their image model and uploads their logo PNG; the prompt always instructs the model to place that logo top-left.

When to use

The user wants a thumbnail / social card / cover / OG image / banner and either gives you a topic, a headline, or a whole article. Turn it into one polished prompt.

Inputs (ask only if missing something essential)

Headline or topic (required) — the article title, or the point of the image.
Brand (default: Grit Framework, logo = the Grit "G" mark) — name + logo lockup.
Accent color (optional) — pick one from reference.md if not given.
Hero element (optional) — the right-side visual; pick a fitting one from reference.md if not given.
Ratio (default 1200×630, i.e. 1.91:1 social/OG) — use 1080×1080 if they want square, 1600×900 for a wide banner.

If the user gives a full article, read it, distill the single sharpest idea, and write the headline yourself.

The house style (invariants — never drop these)

Ratio: landscape 1.91:1 (1200×630) unless told otherwise.
Background: a bold gradient from the chosen accent color into deep navy #0B1120, overlaid with a subtle, evenly-spaced dot-grid pattern.
Headline: short (aim ≤ 6 words, ≤ 2 lines), pure white, heavy geometric sans-serif, set inside a solid deep-navy highlight block anchored lower-left. Use \n to control the line break.
Right third: exactly one clean hero element (code window, 3D metallic object, stacked layer chips, terminal, or a split comparison) with soft studio shadows or a faint accent glow. Never clutter.
Top-left: "place the attached [Brand] logo mark with the wordmark '[Brand Name]' next to it, small and high-contrast, matching a Neon-style logo lockup." (Always say attached — the user uploads the real logo.)
Global: high contrast, generous breathing room, no people, no lens flare, no 3D text, no stock photos.

How to build the prompt

Headline — compress the topic to a punchy hook. Prefer verbs and tension ("Stop rebuilding the backend", "Auth that just works", "CRUD in one command").
Accent — pick from the palette in reference.md. Vary it across a series so a feed looks cohesive but not repetitive; keep the brand's primary as the anchor.
Hero — choose the element that best shows the idea (see the topic→hero map in reference.md): a comparison → split composition; a CLI → terminal window; "batteries included" → stacked layer chips; a config/API → code window.
Assemble using the template below, filling every {...}.

Output template

Return this, filled in, inside a single fenced block, followed by the one-line upload reminder — nothing else:

Generate a {RATIO} landscape social card, premium developer-tool aesthetic.
Background: a bold gradient from {ACCENT_NAME} ({ACCENT_HEX}) into deep navy
(#0B1120), overlaid with a subtle, evenly-spaced dot-grid pattern.
Headline: the words "{HEADLINE}" in a heavy geometric sans-serif, pure white,
set inside a solid deep-navy highlight block anchored to the lower-left third.
Right third: {HERO_DESCRIPTION}, soft studio shadows with a faint {ACCENT_NAME}
glow.
Top-left: place the attached {BRAND} logo mark with the wordmark "{BRAND_NAME}"
next to it, small and high-contrast, matching a Neon-style logo lockup.
High contrast, lots of breathing room, no people, no lens flare, no 3D text.

Then add: "Attach your {BRAND} logo PNG when you run this prompt."

If the user asks for several (a series), output one prompt per topic, each with a different accent from the palette, and keep the logo lockup identical across all.

See reference.md for the accent palette, hero ideas, the topic→hero map, and two worked examples.

Neon-style thumbnail prompt generator

When to use

The user wants a thumbnail / social card / cover / OG image / banner and either gives you a topic, a headline, or a whole article. Turn it into one polished prompt.

Inputs (ask only if missing something essential)

Headline or topic (required) — the article title, or the point of the image.

Brand (default: Grit Framework, logo = the Grit "G" mark) — name + logo lockup.

Accent color (optional) — pick one from reference.md if not given.

Hero element (optional) — the right-side visual; pick a fitting one from reference.md if not given.

Ratio (default 1200×630, i.e. 1.91:1 social/OG) — use 1080×1080 if they want square, 1600×900 for a wide banner.

If the user gives a full article, read it, distill the single sharpest idea, and write the headline yourself.

The house style (invariants — never drop these)

Ratio: landscape 1.91:1 (1200×630) unless told otherwise.

Background: a bold gradient from the chosen accent color into deep navy #0B1120, overlaid with a subtle, evenly-spaced dot-grid pattern.

Headline: short (aim ≤ 6 words, ≤ 2 lines), pure white, heavy geometric sans-serif, set inside a solid deep-navy highlight block anchored lower-left. Use \n to control the line break.

Right third: exactly one clean hero element (code window, 3D metallic object, stacked layer chips, terminal, or a split comparison) with soft studio shadows or a faint accent glow. Never clutter.

Top-left: "place the attached [Brand] logo mark with the wordmark '[Brand Name]' next to it, small and high-contrast, matching a Neon-style logo lockup." (Always say attached — the user uploads the real logo.)

Global: high contrast, generous breathing room, no people, no lens flare, no 3D text, no stock photos.

How to build the prompt

Headline — compress the topic to a punchy hook. Prefer verbs and tension ("Stop rebuilding the backend", "Auth that just works", "CRUD in one command").

Accent — pick from the palette in reference.md. Vary it across a series so a feed looks cohesive but not repetitive; keep the brand's primary as the anchor.

Hero — choose the element that best shows the idea (see the topic→hero map in reference.md): a comparison → split composition; a CLI → terminal window; "batteries included" → stacked layer chips; a config/API → code window.

Assemble using the template below, filling every {...}.

Output template

Return this, filled in, inside a single fenced block, followed by the one-line upload reminder — nothing else:

Generate a {RATIO} landscape social card, premium developer-tool aesthetic. Background: a bold gradient from {ACCENT_NAME} ({ACCENT_HEX}) into deep navy (#0B1120), overlaid with a subtle, evenly-spaced dot-grid pattern. Headline: the words "{HEADLINE}" in a heavy geometric sans-serif, pure white, set inside a solid deep-navy highlight block anchored to the lower-left third. Right third: {HERO_DESCRIPTION}, soft studio shadows with a faint {ACCENT_NAME} glow. Top-left: place the attached {BRAND} logo mark with the wordmark "{BRAND_NAME}" next to it, small and high-contrast, matching a Neon-style logo lockup. High contrast, lots of breathing room, no people, no lens flare, no 3D text.

Then add: "Attach your {BRAND} logo PNG when you run this prompt."

If the user asks for several (a series), output one prompt per topic, each with a different accent from the palette, and keep the logo lockup identical across all.

See reference.md for the accent palette, hero ideas, the topic→hero map, and two worked examples.