Signals Notebook: ADT does not support formatted text

When using API:

When using formatted text to PATCH an ADT over API, a message similar to the following will be displayed:

The request parameters are in bad format.

ERROR - Unable to parse JSON - Illegal unquoted character

This usually means an illegal character like a newline character has been provided without being escaped.

When using the UI:

If you paste multi-line text on an ADT in the UI, the formatting/style will be lost, if there are new line characters, they will move the input to the next row in the ADT.