Font resize in SAP 9.0

Hi all

I am testing my AddOn in SAP 9.0

In some forms when I click some items the font size grow up like next screenshot

I dont change the font size in my code I just add the items with the properties predefined

In SAP 8.81, 8.82, the problem is not there, I need to change anything for SAP 9.0?

I already changed the API reference DI/UI 9.0

Regards

Alvaro González