I've heard the refrain about keeping logic out of templates so many times, and yet professionaly I've never come across a situation where totally programming-clueless designers were actively editing templates. It always falls into one of two categories:
* the designer doesn't go anywhere near the real app and does all their work as mockups of HTML / CSS or even Illustrator / Photoshop. Developers do the work to integrate templates, designers at most fiddle with the CSS or bare HTML in the template and never touch any logic.
* the designer is reasonably competent to deal with the primitive programming in templates and is involved in the full lifecycle of product development
The bottom line is that if they are too leary of programming to cope with simple logic structures in a template then they are altogether incapable of working productively as part of the development lifecycle and should just hand their stuff to people who have those skills.
* the designer doesn't go anywhere near the real app and does all their work as mockups of HTML / CSS or even Illustrator / Photoshop. Developers do the work to integrate templates, designers at most fiddle with the CSS or bare HTML in the template and never touch any logic.
* the designer is reasonably competent to deal with the primitive programming in templates and is involved in the full lifecycle of product development
The bottom line is that if they are too leary of programming to cope with simple logic structures in a template then they are altogether incapable of working productively as part of the development lifecycle and should just hand their stuff to people who have those skills.