The ornamental design for a lightfixture, as shown and described.
FIG. 1 is a top perspective view of a light fixture in accordance with the present design;
FIG. 2 is a bottom perspective view of the light fixture illustrated in FIG. 1
FIG. 3 is a front view of the light fixture illustrated in FIG. 1;
FIG. 4 is a rear view of the light fixture illustrated in FIG. 1;
FIG. 5 is a left side view of the light fixture illustrated in FIG. 1;
FIG. 6 is a right side view of the light fixture illustrated in FIG. 1;
FIG. 7 is a top plan view of the light fixture illustrated in FIG. 1; and,
FIG. 8 is a bottom plan view of the light fixture illustrated in FIG. 1.
The broken lines depict portions of the article that form no part of the claimed design.
The break lines shown on the central support member indicate that the appearance of any portion of the article between the break lines forms no part of the claimed design.