Actually, I think various types of items should be color coded to stand out. Keyboard Input items should stand out because they will often be edited in some way.
For example:
Today, I recorded a script and while recording, took a couple of missteps. I had a typo in the password field and had to backspace and retype (twice!). It was easy to go in and edit the initial password to be perfect and then delete the other two password-related items. What took the longest, was LOCATING the keyboard items ;) They are not hidden, but do not stand out.