FIG. 1 is a top elevation view of a track retainer for a retractable screen system;
FIG. 2 is a bottom elevation view of a track retainer for a retractable screen system;
FIG. 3 is a left side elevation view of a track retainer for a retractable screen system;
FIG. 4 is a right side elevation view of a track retainer for a retractable screen system;
FIG. 5 is a front elevation view of a track retainer for a retractable screen system;
FIG. 6 is a rear elevation view of a track retainer for a retractable screen system;
FIG. 7 is a top right perspective view of a track retainer for a retractable screen system;
FIG. 8 is a front perspective view of a track retainer for a retractable screen system;
FIG. 9 is an alternate top right perspective view of a track retainer for a retractable screen system;
FIG. 10 is a bottom left perspective view of a track retainer for a retractable screen system;
FIG. 11 is a bottom perspective view of a track retainer for a retractable screen system; and,
FIG. 12 is an alternate front perspective view of a track retainer for a retractable screen system.
The dash-dash broken lines in the drawings represent portions of the fixed track for a retractable screen system and form no part of the claimed design. The fixed track for the retractable screen system is shown with a symbolic break in its length. The appearance of any portion of the fixed track for a retractable screen system between the break lines forms no part of the claimed design.