FLAT BUTTON behaviour is different than Normal BUTTON

[shri_fwh]

Hi All,

I am using FLAT BUTTON instead of Normal BUTTON , it looks very good. But the behaviour of FLAT BUTTON is not as same as
Normal BUTTON in term of navigation. When the FLAT BUTTON get focus and user press Up/down/Left/Right Keys to navigate from One Button to another Button or another object It does not work. For navigation It support only TAB key not Up/down/Left/Right Keys. Please suggest the solution for the same. Thanks in advance..!

Thanks
Shridhar