FIG. 1 is an environmental perspective view of a vent cover showing my new design;
FIG. 2 is a perspective view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a rear elevational view thereof;
FIG. 5 is a right side elevational view with the left side being a mirror image thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken line showing of the vent in FIG. 1 depicts environmental subject matter only and forms no part of the claimed design.