The ornamental design for an adjustableshade, as shown and described.
FIG. 1 is a perspective view of an adjustable shade in an environment of use, showing my new design;
FIG. 2 is a front view of an adjustable shade in a partially detached position;
FIG. 3 is a rear view of an adjustable shade;
FIG. 4 is a side view thereof;
FIG. 5 is an opposite side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is an exploded view of FIG. 2.
The broken lines used in FIG. 1 of the drawings disclosure are for illustrative purposes only and form no part of the claimed design. The evenly spaced broken line portion of the figure drawings is included to show environment that form no part of the claimed design. The dot-dot-dash line portion of FIGS. 1-3 and 8 represent stitching. The scattered stippling in FIGS. 1-3 and 6-8 represent hook and loop.