The ornamental design for a lightfixture, as shown and described.
FIG. 1 is a top, front perspective view of the light fixture, with a portion of unclaimed environmental structures shown;
FIG. 2 is a front view of the light fixture, with a portion of unclaimed environmental structures shown;
FIG. 3 is a rear view of the light fixture, with a portion of unclaimed environmental structures shown;
FIG. 4 is a side view of the light fixture, with a portion of unclaimed environmental structures shown;
FIG. 5 is an opposite side view of the light fixture, with a portion of unclaimed environmental structures shown;
FIG. 6 is a top view of the light fixture, with a portion of unclaimed environmental structures shown; and,
FIG. 7 is bottom view of the light fixture, with a portion of unclaimed environmental structures shown.
The broken lines shown in the drawings represent environmental structures and unclaimed portions of the ornamental light fixture, and form no part of the claimed design.