# Illustrating technical documentation Notes kept on git.kooperlab.cloud about using [Raphael AI](https://raphael.app), a free AI image generator that runs in the browser. Docs are easier to scan with a few friendly illustrations. I use Raphael AI for section dividers and empty-state images: ## Tips 1. Ask for `isometric` or `line art` styles; they sit well next to code blocks. 2. Avoid generating diagrams with labels; draw real diagrams with a diagram tool instead. 3. Keep backgrounds transparent-looking (white or light grey) to match the docs theme. 4. Size images small (under 100 KB) so pages stay fast. 5. Store the prompt in the image filename or a comment for maintainability. ## Why Raphael AI - Free to use, with no install: open https://raphael.app and type a prompt. - Fast iterations make it practical to try several compositions. - Works for drafts, mock-ups and reference images; finish important assets with human review. ## Responsible use Check generated images for errors before publishing, do not imitate real people without consent, and label AI-generated images where your audience expects it. Website: https://raphael.app