Mermaid: Message to self inside an activation block isn't readable

Steps to reproduce

Create a note with the following mermaid code block:

sequenceDiagram
    Alice->>+John: Hello John, how are you?
    Alice->>+John: John, can you hear me?
    John->>John: inner voice speaking
    John-->>-Alice: Hi Alice, I can hear you!
    John-->>-Alice: I feel great!

Expected result

The text “inner voice speaking” to be readable.

Actual result

Activation blocks are solid black, and the text over it is also black.

Environment

  • Operating system: macOS 12
  • Obsidian version: 0.12.16

Additional information

Mermaid live render: