The ornamental design for a swingtoplid, as shown and described.
FIG. 1 is a top frontal perspective view of a swing top lid according to my new design;
FIG. 2 is a left side view of the swing top lid shown in FIG. 1;
FIG. 3 is a right side view of the swing top lid shown in FIG. 1;
FIG. 4 is a front view of the swing top lid shown in FIG. 1;
FIG. 5 is a back view of the swing top lid shown in FIG. 1;
FIG. 6 is a top view of the swing top lid shown in FIG. 1; and,
FIG. 7 is a bottom view of the swing top lid shown in FIG. 1.
The ornamental design which is claimed is shown in solid lines in the drawings. The broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.