The ornamental design for an appliancecontrolpanel, as shown and described.
FIG. 1 is a front elevation view of an appliance control panel showing the new design;
FIG. 2 is a left-side, three-quarter perspective view thereof; and,
FIG. 3 is a right-side, three-quarter perspective view thereof.
The broken line showing of the associated appliance is included for the purpose of illustrating environmental structure and forms no part of the claimed design.