add ability to customize left-size column in admin by setting color and style.
add ability to customize left-size column in admin by setting color and style.

xepan/atk4,svisystem/atk4,xepan/atk4,samratcis/atk4,atk4/atk4,samratcis/atk4,svisystem/atk4,atk4/atk4,samratcis/atk4,atk4/atk4,svisystem/atk4,atk4/atk4,xepan/atk4