The ornamental design for a tree-shaped frame, as shown and described.
FIG. 1 is an isometric view of a front, top, and right side of an ornamental design for a tree-shaped frame;
FIG. 2 is a front elevational view of the tree-shaped frame of FIG. 1;
FIG. 3 is a rear elevational view of the tree-shaped frame of FIG. 1;
FIG. 4 is a right side elevational view of the tree-shaped frame of FIG. 1;
FIG. 5 is a left side elevational view of the tree-shaped frame of FIG. 1;
FIG. 6 is a top plan view of the tree-shaped frame of FIG. 1; and,
FIG. 7 is a bottom plan view of the tree-shaped frame of FIG. 1.
The broken lines in the drawings represent the bounds of the claim, with the exception of the small features on the rear of the frame, which represent unclaimed portions of the frame. All broken lines form no part of the claimed design.