The ornamental design for a lightfixture, as shown and described.
FIG. 1 is a bottom perspective view of the light fixture.
FIG. 2 is a top perspective view of the light fixture of FIG. 1.
FIG. 3 is a right side elevation view of the light fixture of FIG. 1, it being understood that the left side elevation view is identical to the right side elevation view.
FIG. 4 is a front elevation view of the light fixture of FIG. 1, it being understood that the rear elevation view is identical to the front elevation view.
FIG. 5 is a top plan view of the light fixture of FIG. 1; and,
FIG. 6 is a bottom plan view of the light fixture of FIG. 1.
Portions or features of the light fixture not shown in the drawings form no part of the claimed design. The evenly dotted broken lines in the drawings illustrate portions of the light fixture that form no part of the claimed design. The dash-dot-dot-dash broken lines in the drawings represent borders that form no part of the claimed design. The dash-dot-dash-dot broken lines in the drawings represent symbolic breaks along the fixture length. The appearance of any portion of the light fixture between these breaks forms no part of the claimed design.