[Plugin: SetMore Appointments] Chnage the look of the button, is this possibe?

Howdy,

Love setmore but the button really sticks out like a sore thumb. Is there any way to change the graphic for the button or have it inherit my themes default button style?

I would really appreciate your opinion.

Thanks.

Brad

https://www.ads-software.com/extend/plugins/setmore-appointments/