I'd like to reply to an email someone sent me. And reply inline to their email. I'd like it to be clear what is my text and what is their text. Is there some setting I can do which marks my text as blue as something.
My text will be interspersed with their text and if I don't have it clear whose is whose it will become impossible to follow.
Best Answer
When replying, the quoted text will be indented, with a left border line running vertical to it.
If you hit Enter to start a new line of text, your response will show up in between the quoted text, without the indentation. This should be enough to distinguish your feedback from the original.
You can also change the text color of your response, but like I mention in my comment to @tgunn, you will need to choose the color again if you are clicking around to various parts of the email in your response.