Underlined text will always indicate out of character speech. Use it at the begining of posts to clarify assumptions and closing notes. I will use it to explain what kind of dice rolls are needed in the event that they may be unclear and to point out who needs to post next.
Bold text is always an indicator of sound effects. It will never be used for anything else
Italic text is used for description of scenery and events. It will never be used for anything else unless inside quotations marks in which case it serves its usual function of conveying importance.
Code blocks should always be used for matrix messages, computer printouts, and anything digital.
Regular text will most likely be used for character speech. You will, at times, see descriptions of events in regular text when dialogue takes place inside action but I will attempt to keep everything nice and seperated.
Your posts need to follow the same conventions. Actions should be in Italics, sound effects if you desire them, in bold