The ornamental design for a switchplate, as shown and described.
FIG. 1 is a top front side perspective view of a switch plate showing our new design;
FIG. 2 is a front view of the switch plate;
FIG. 3 is a right side view of the switch plate, a left side view being a mirror image thereof;
FIG. 4 is a top side view of the switch plate;
FIG. 5 is a bottom view of the switch plate;
FIG. 6 is a front view of an alternative embodiment of the switch plate; and,
FIG. 7 is a front view of an alternative embodiment of the switch plate.
The rear view is not ornamental and is not claimed as part of the design. The portions of the switch plate shown outside the dash dot dash lines in the drawing figures forms no part of the claimed design. The broken lines inside the outside connectors illustrate structure forming no part of the claimed design.