colour configuration

dear experts:
in our WINCC pictures there are two positions("basic position" and "roll load") which corresponding to two actual positions of the roll on site.and when the roll goes up from the "basic position" to the
"roll load" position,it's background color is yellow and flashing at the same time.the color will change to green and keep in green when the roll has already get to the "roll load" position.normally there must be colour configuration in it's property.but i can not find it. the configuration of the item will be showed in the document.
1、when the variable "calender_control_WinCC/VISU_BO_1.IN5" change from 0 to 1 in PLC,the "visible_feedback" active,so the background color will be yellow and flashing.
2、when the variable "calender_control_WinCC/VISU_BO_1.IN6" change from 0 to 1 in PLC,the "visible_status" active,so the background color will be green and keep in green.

how can colours change due to the two BOOL variable change their status?