The ornamental design for a tracklight, as shown and described.
FIG. 1 is a front perspective view of a track light according to my new design;
FIG. 2 is a left side elevational view of the track light shown in FIG. 1, a right side elevational view being a mirror image of the left side elevational view;
FIG. 3 is a top plan view of the track light shown in FIG. 1, the bottom plan view being a mirror image of the top plan view;
FIG. 4 is a front elevational view of the track light shown in FIG. 1; and,
FIG. 5 is a rear elevational view of the track light shown in FIG. 1.
The broken lines in FIGS. 1, 2, 4, and 5 are for illustrative purposes only and form no part of the claimed design.