coloured text in diagrams...

sometimes when people want a game analysed they will leave comments in the diagram, now if I want to comment on what they said, we currently have no way of distinguishing my comments from his/her comments. coloured text would solve this.

here is a simple example of what I mean: 

now, I want to comment on what they have said "f4 gains space"  

so my response to this post would look like:

but if there is a lot of text, in several variations "Quotation tags" is simply insufficient. If we where able to use coloured text (bold, underline, italic, etc would also work nicely) then readers would be able to quickly and easily follow the comments, if people used the function correctly. 

its late, and this probably doesnt make sense, I'll come back to it tomorrow.

oh and one more (completely unrelated) point COULD YOU PLEASE SET DIAGRAMS TO HAVE "SHOW CORDINATES ON" SET AS DEFAULT!!!!!!!!!, with the option of turning them off. thankyou.