The ornamental design for a under cabaccentpanel, as shown and described.
FIG. 1 is an environmental view of a vehicle showing an under cab accent panel according to an exemplary embodiment of our new design for use on a first side of the vehicle;
FIG. 2 is a front perspective view of the under cab accent panel shown in FIG. 1 without the environmental elements;
FIG. 3 is a front view of the under cab accent panel shown in FIG. 2;
FIG. 4 is a top view of the under cab accent panel shown in FIG. 2;
FIG. 5 is a left side view of the under cab accent panel shown in FIG. 2;
FIG. 6 is an environmental view of a vehicle showing an under cab accent panel according to an exemplary embodiment of our new design for use on a second side of the vehicle;
FIG. 7 is a front perspective view of the under cab accent panel shown in FIG. 6 without the environmental elements;
FIG. 8 is a front view of the under cab accent panel shown in FIG. 7;
FIG. 9 is a top view of the under cab accent panel shown in FIG. 7; and,
FIG. 10 is a right side view of the under cab accent panel shown in FIG. 7.
The broken lines shown in the figures represent portions of the under cab accent panel that form no part of the claimed design.