The ornamental design for a paintingtray, as shown and described.
FIG. 1 is a perspective view of my ornamental design;
FIG. 2 is a front elevation view of the ornamental design of FIG. 1, where cut lines 8—8 and 9—9 are included for descriptive purposes only and form no part of the claimed design;
FIG. 3 is a rear elevation view of the ornamental design of FIG. 1;
FIG. 4 is a left elevation view of the ornamental design of FIG. 1;
FIG. 5 is a right elevation view of the ornamental design of FIG. 1;
FIG. 6 is a top view of the ornamental design of FIG. 1;
FIG. 7 is a bottom view of the ornamental design of FIG. 1;
FIG. 8 is a plan view taken along line 8—8 in FIG. 2;
FIG. 9 is a plan view taken along line 9—9 in FIG. 2; and,
FIG. 10 is a perspective view of the ornamental design of FIG. 1 with broken lines showing painting tools, which are shown for illustrative purposes only and form no part of the claimed design.