Just to let you know that my theme engin had a "bug" with /color in mIRC 6.1 with the item color name "Grayed Text" which is now "Gray Text" after looking at the color dialog. So all MTS engins etc, should fail with a /color bad parameters with "Grayed Text".

Yup, it definately changed. Thats imho a rather bad thing seeing as how it will, like you said, break just about every mts theme out there.