HTML template for new messages, replies etc?

[artfulrobot]

Hi,

First: Thanks to all for such a wonderful bit of software!

I would like to set up a default HTML template for new messages. This will enable me to include my own CSS for example.

Is this possible already? Would it be possible to code as a plugin?

Thanks, Rich.

[SKaero]

I have a plugin that does this, PM me if you want to discuss.