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intellij-ideaspring-webfluxproject-reactor

How to show Reactor marble diagram in quick documentation?

I'm new to IntelliJ Ultimate edition and I found that others can see the marble diagram of Reactor just like this enter image description here

... when they hover methods.

But I can only see this (just some texts, without any diagram picture): enter image description here

Is there any option for enabling to render the diagram?

This is my IntelliJ version. enter image description here

Solution

  • Press Ctrl+Shift+A and search and select "Download sources and documentation" as showed in the image.

    enter image description here