# L-system Graphics (L-systemグラフィックス) — image generation prompt
# IndexStyle No.589 — https://indexstyle.org/styles/l-system-graphics
# Style descriptors only. This prompt names no artist, studio, brand or work.

Produce four original images in the visual language of L-system Graphics, a technique from Computational Expression, 1968–.

## What to make

Make the kind of thing this style exists for: modeling plant growth in education, visualization and generative motion, or making reproducible branching patterns and ornament from a small rule set. Choose one subject and hold it across all four images.

## What has to be visible

- Branches repeating one angle rule from a trunk
- Self-similar detail increasing by generation
- Leaves or flowers attached regularly at tips and joints
- A growth grammar that survives controlled randomness

Someone who knows this style should be able to point at each of these in the finished image.

## How to build it

- Layout and structure: Anchor one root and plan how each generation expands into the available field
- Type and lettering: Set rules and generation numbers in monospace outside the generated form
- Material and surface: Define symbols, productions, angle, line length and stack operations, updating all symbols in parallel per generation
- Colour: #F2F0E5 carries the ground, #5A8F62 is the colour the style is remembered by, #183126 holds text and outlines. Read off real works, so treat them as a direction rather than a fixed palette.
- What it should feel like: technique, calm, futurity

## What goes wrong

Mirroring branch photography is not an L-system. Preserve the production rules that generate each generation.

## Across the four

Keep every cue above present in all four. Vary the framing, the scale and the arrangement so the set shows the range this style covers 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 language described above.

Full design spec: https://indexstyle.org/styles/l-system-graphics/design.md