gradients

[invitezone]

hi i was wondering if someone could help me...im using a coloring changing skin and when u go to change a color the color looks flat...so i made some gradients is there a way to add them in so when a member picks a color it shows that gradient... ?

i think i have to edit each css file...but im not sure

here's my css file

.tcat
{
background: #008080;

}
.vbmenu_control
{
background: #008080;
}

thanks