Rounded border background in buttons not working when using border

[fedematteis]

Using the properties file customization i tried to create my own button class, but even if attributes like background, foreground and arc work correctly, when i add the border description the button stops being rounded, even if the border appears curved.
This is my properties code:
[style]Button.newButton = \ arc:20;\ border: 5, 10, 5, 10, #FFFFFF, 2, 20; \ foreground: #F6FCFF; \ background: #1EB7F5;\ iconTextGap: 13; \

I've also tried to take out the roundness value from the border, but the arc attribute is still ignored and both button and border are printed squared:
[style]Button.newButton = \ arc:20;\ border: 5, 10, 5, 10, #FFFFFF, 2; \ foreground: #F6FCFF; \ background: #1EB7F5;\ iconTextGap: 13; \

please let me know how could i improve my code, thank you in advance for all the work on flatlaf!

[poce1don]

Don't use
border: 5, 10, 5, 10, #FFFFFF, 2, 20;
It won't work for JButtons and JTextfields

Use:
Button.arc = 20
Button.borderColor = #FFFFFF
Button.margin = 5,10,5,10