The ornamental design for a slatwallpanel, as shown and described.
FIG. 1 is a perspective view of a slatwall panel showing my new design;
FIG. 2 is a front view of the slatwall panel shown in FIG. 1;
FIG. 3 is a rear view of the slatwall panel shown in FIG. 1;
FIG. 4 is a bottom view of the slatwall panel shown in FIG. 1;
FIG. 5 is a top view of the slatwall panel shown in FIG. 1; and,
FIG. 6 is an enlarged side view of the slatwall panel shown in FIG. 1.
The dashed lines shown in FIG. 1 represent environmental subject matter only and form no part of the claimed design. The other dashed lines in FIGS. 3 and 6 represent portions of the slatwall panel that form no part of the claimed design. The slatwall panel is shown with a symbolic break in its length. The appearance of any portion of the slatwall panel between the jagged break lines forms no part of the claimed design.