Enter key versus Space Bar to trigger button onAction Event

Is there any way to tell which LAF uses the enter key instead of the space bar to trigger a button’s onAction event.

I am using Kunststoff LAF and a theme of KunststoffTheme. After tabbing to a button, nothing happened when pressing the Enter key.

After reading the forum, I discovered the space bar works however I do not want to change the look of my application. Is there a solution?

Is it possible to make these lafs configurable much like the CSS style sheets?

Thank you in advance for your assistance.

Is it possible to make these lafs configurable much like the CSS style sheets?

Not as far as I know.