Final answer:
Icon colors and their meanings can vary by platform, but often a yellow icon suggests that an action (such as a promotion or back-promotion) is manual. For definitive information, users should consult the specific software's guide or help documentation.
Step-by-step explanation:
A student has asked which color icon indicates that the promotion or back-promotion is MANUAL. The answer to this question is not universally standard, as icon colors and their meanings can vary depending on the specific software or platform being used. However, typically in many interfaces, a yellow icon is used to indicate a manual action is required. This could apply to workflow systems, project management tools, or any other software where manual intervention is signified with a color-coded system. If this is in reference to a specific platform, it is best to consult the user guide or help documentation of that platform for the most accurate information. Remember that standardized icons and color meanings are not a given and can vary from one application to another.