Is using images as buttons a good design principle for winforms? [on hold]

I'm developing a windows forms application in C#. Is it a good practice to design all the buttons, background and the entire UI using images rather than using custom user controls or third party user controls like Telerik or Devexpress?

Ofcourse I understand I can't do this for certain controls like grids.

But, other than that, Is it ok to do it this way in terms of best practices and performance?

Thanks.

P.S : I'd love to use HTML5 for the design if that were possible and I don't currently use WPF since my project requires winforms.