What you really want to watch out for even more so than color change, is meat or poultry that has a bad odor or is sticky, tacky, or slimy to the touch. Let your other senses be your guide in these instances. Read more: The Color of Meat and Poultry - USDA.
Windows Management Instrumentation(WMI) is a set of extensions to the Windows Driver Model that provides an operating system interface through which instrumented components can provide information and notification.
Win32_SystemEnclosure class. The Win32_SystemEnclosure WMI class represents the properties that are associated with a physical system enclosure. The following syntax is simplified from Managed Object Format (MOF) code and includes all of the inherited properties. Properties are listed in alphabetic order, not MOF order.