The ornamental design for a lightfixture, as shown and described.
FIG. 1 is a perspective view of a light fixture in accordance with my design;
FIG. 2 is a side elevation view of the light fixture in accordance with my design, the opposite side being a mirror image thereof;
FIG. 3 is a top plan view of the light fixture in accordance with my design;
FIG. 4 is a front elevation view of the light fixture in accordance with my design, the opposite side being a mirror image thereof; and,
FIG. 5 is a bottom plan view of the light fixture in accordance with my design.
The broken-line disclosure of elements is understood to represent portions of the article in which the design is embodied, but which form no part of the claimed design.
Light fixture elements are shown broken away to indicate indeterminate length.