The ornamental design for a painttray, as shown and described.
FIG. 1 is a perspective view of a paint tray showing my new design;
FIG. 2 is a side elevational view, the opposite being a mirror image
thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a bottom plan view thereof; and
FIG. 5 is a modified form of the paint tray shown in FIG. 1 wherein the
only difference resides in the two opposite walls which are each inclined
and have similar supporting legs.