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46 lines
1.7 KiB
Markdown
46 lines
1.7 KiB
Markdown
# Diagram Guidelines
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## Preferred file format
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For complex diagrams, use the `.drawio.svg` format.
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Files with the `.drawio.svg` extension are SVG files with embedded [draw.io](https://www.diagrams.net/) source code. Using that format lends itself to a developer-friendly workflow: it is valid SVG, plays well with `git diff` and can be edited in lock-step using various online and offline flavours of draw.io. If you use VS Code, you can use an [extension](https://marketplace.visualstudio.com/items?itemName=hediet.vscode-drawio) for draw.io integration.
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Files in the `.drawio.svg` format can be processed offline.
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## Embedding a diagram into Markdown
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To embed a `.drawio.svg` file into Markdown, use the same syntax as for any image. Example: ``
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Mind that GitHub doesn’t allow styling in Markdown documents. Where styling is allowed (e.g. in the exported brew.sh version of the documentation), always set a background colour of `white` for the diagram. That’s the colour draw.io assumes, and keeps the diagram easy to read in dark mode without further customization. You can use the CSS selector `img[src$=".drawio.svg"]` for styling.
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## Example
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Example for an SVG image embedded into Markdown:
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```md
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```
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Result:
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Example for styling (where allowed):
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```css
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img[src$=".drawio.svg"] {
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background-color: white;
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margin-bottom: 20px;
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padding: 5%;
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width: 90%;
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}
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@media (prefers-color-scheme: dark) {
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img[src$=".drawio.svg"] {
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filter: invert(85%);
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-webkit-filter: invert(85%);
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}
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}
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```
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