Round/curved button for web dynpro ABAP application

Hi Expert

In my project, we would like to have nice-looking effect for web dynpro ABAP applications. For example, right now the Button UI Element in web dynpro ABAP is rectangular, we want to have a rounded/curved effect for this.

I check the button settings in theme editor , most of them are color or font size relevant settings.It's not simple to set to have such round effect. I believe web dynpro abap does not good in supportting docorating web behavior.
I have no idea where to implement to have the round button.

If you have such experience, could you please share your idea, tips, if with techinical details, that's so great.

Best Regards,

Bin