Style-1 is the default theme button.(looks like currently activated Theme button). For customizable button, please select style-8

List of Styles

Style-1 Appears as Theme Button Style-2 Plain Link Style-3 Image Style-4 Image + Text ( chip Style ) Style-5  Icon Style-6 Icon With Round Border Style-7 Icon With Box Border Style-8 Button style (Icon, Text ) Style – 9 Image in Green square Style – 99 – own image / GIF Own Image / GIF