While editing instructions in IDLx it will be useful to be able not just to mark text in bold or italic etc but to be able to set it up in a colour. Maybe using hex colour codes, similar to HTML editing.
This capability exists today. This can be done with HTML tags directly around the text you desire to style - such as <span style="color:#123456;"> - or with CSS. CSS can be applied directly within the document enclosed in <style> tags at the top of the page, or can be done with a "Theme"