To draw attention to a window apron, use paint to contrast or compliment the surrounding frame. Window frames are often trimmed in the room's primary color. Paint the apron to compliment color with a lighter or slightly darker shade of the same color. Use contrast by selecting an opposing color or use the secondary room color for the apron only. For example, in a green and yellow room, paint the trim around the window green and the apron yellow. For a higher contrast in the same room, paint the frame white and the apron green. This low cost option is a simple project that may be finished in only a few hours.
For wood aprons, carving is a decorative option. Special tools allow woodworkers to engrave or carve shapes into wood. These decorative carvings range from simple rosettes to complex lace patterns. For a do-it-yourself project, consider shapes or patterns that only require one cut, such as circles. Once the carvings are in place, the apron may be painted to match or contrast the rest of the window frame. If the apron isn't made of wood, consult with a professional about cutting the material before choosing this option.
Premade molding pieces are available at craft and woodworking specialty stores. These pieces come in a range of shapes and sizes and can be added to almost any piece of wood, including a window apron. Appliques are molding pieces that are cut to look like a variety of objects, including delicate flowers and lace pieces. These may be attached to the apron with wood glue alone, and many can be painted to match or contrast the surrounding room colors.
For a more whimsical appearance, use stencils. Paint the apron a light, neutral color and let it dry before you continue. Select a stencil that suits the room. For a dining room or kitchen, fruit or vegetable shapes may be suitable. Delicate flowers or abstract shapes are fitting for a modern or contemporary living room. Tape the stencil to the apron and fill it in with appropriate colors of paint. Mix and match stencils to form patterns or repeat the same stencil across the apron for a uniform look.