The ornamental design for a sidingpanel, as shown and described.
FIG. 1 is a top perspective view of the siding panel.
FIG. 2 is a bottom perspective view of the siding panel in FIG. 1.
FIG. 3 is a left side view of the siding panel in FIG. 1. The right side view is a mirror image of the left side view.
FIG. 4 is a top view of the siding panel in FIG. 1.
FIG. 5 is a bottom view of the siding panel in FIG. 1.
FIG. 6 is a front view of the siding panel in FIG. 1.
FIG. 7 is a rear view of the siding panel in FIG. 1; and,
FIG. 8 is a perspective view of the siding panel in FIG. 1 positioned above a second siding panel.
The siding panel break lines shown in FIGS. 1-2 and 4-8 are shown with a symbolic break in its length, width, and height. The appearance of any portion of the article between the break lines form no part of the claimed design as illustrated in FIGS. 1-2 and 4-8. The broken lines shown in FIG. 8 illustrate portions of the siding panel that form no part of the claimed design.