normal:
Border: #DDD
Background:White
Color (the arrow): #4c4c4c
normal-hover:
Border: #DDD
Background:#e5e5e5
Color: Black
normal-active (in moment of click);
Border: #CCC
Background: #e5e5e5
Color: Black
disabled:
Color: #DDD
disabled-hover: none
disabled-active: none