Change the diagram language

You choose a language when you create a text diagram, and you can change it afterwards. Changing it does not translate the source; it changes how the source is interpreted.

That sounds obvious and still catches people, because a Mermaid flowchart set to Graphviz produces a confusing error rather than an obvious one.

#What this is for

Creating a text diagram.
Fixing a diagram detected as the wrong language.
Converting a diagram by rewriting it in a different language.

#How it works

Action	How
At creation	Pick from the language list when you insert the diagram.
Afterwards	Change it from the editor toolbar.
What changes	How the source is interpreted, and which renderer draws it.
What does not change	The source itself. Nothing is translated.
Missing languages	An administrator may have turned some off. See Administration.

#A few things that catch people out

Changing the language does not convert the source. Rewrite it, or change the language back.
A confusing parse error is often the wrong language rather than a bad line.
Mermaid is the fallback, so unrecognised source ends up there.

Code editor themes and wrapping

Making long source readable.

Find and replace in diagram code

Renaming twenty nodes at once.

Text editor

Back to the editor overview.

The source is right there. Read it.