FIG. 1 is a top, perspective view of a window tinting tool showing our new design; FIG. 2 is a front elevational view thereof; FIG. 3 is a rear elevational view thereof; FIG. 4 is a top plan view thereof; FIG. 5 is a bottom plan view thereof; FIG. 6 is a right end elevational view thereof; and, FIG. 7 is a left end elevational view thereof.