# Canonical Vanilla × GitHub Primer — composed image prompt
# IndexStyle — https://indexstyle.org/compose?ids=canonical-vanilla+github-primer
# Canonical Vanilla carries the structure and GitHub Primer appears as the accent.
# Style descriptors only. This prompt names no artist, studio, brand or work.

Produce four original images that take their structure from Canonical Vanilla (style, 2013–) and their accent from GitHub Primer (style, 2017–).

## What to make

Make the kind of thing Canonical Vanilla exists for: technical product sites whose long copy must be scanned rapidly by heading, or sharing one typography and sectional rhythm across Canonical product sites and admin apps. Choose one subject and hold it across all four.

## Structure comes from Canonical Vanilla

- Thin large headings paired with bold smaller headings in Ubuntu type
- Asymmetric 25/75 and 50/50 splits
- Fine rules above sections and generous vertical space
- White surfaces, dark text and orange or aubergine focus

Composition: Divide an eight- or twelve-column grid in 25-percent units, putting short headings left and longer content right; rule the section tops. Type and lettering: Use Ubuntu Variable with light display headings and bold small headings and UI labels.

## Accent comes from GitHub Primer, used sparingly

- Neutral surfaces with blue links and restrained status colors
- Octicons paired with short action labels
- Thin borders separating lists, tabs and sidebars
- Consistent steps of type and spacing even at high density

Let one material quality come from it: Start from neutrals; reserve blue for links and semantic colors for success, warning and danger.

## Colour and feeling

Build the ground on #FFFFFF, carry the structure in #E95420 and #2C001E, and let a single accent come from #0969DA. These are read off real works, so a direction rather than a fixed palette.
Feeling to carry: technique, trust, calm.

## Where they fight

- Canonical Vanilla and GitHub Primer both belong to Platform Screen Languages, so the difference is small. Push the roles further apart than feels comfortable.

## What goes wrong

- Canonical Vanilla: Ubuntu type alone does not make Vanilla. Keep the quarter-based splits and the reading rhythm between sections consistent too.
- GitHub Primer: Adding borders and tiny controls to look like GitHub only creates a cramped admin screen when the work has no clear priority.

## Across the four

Keep the roles fixed in all four. Vary the framing, the scale and the arrangement so the set shows what this pairing can do rather than four versions of one picture.

## Constraints

- Do not imitate, reference or name any specific artist, studio, brand, character or copyrighted work.
- Do not reproduce the composition of an existing work.
- Produce original compositions in the general period languages described above.

Design specs for each entry: https://indexstyle.org/styles/canonical-vanilla/design.md · https://indexstyle.org/styles/github-primer/design.md