I'd suggest hiding the area by reworking something on top of it. Depending on your design, a floral design with conveniently twisting leaves and stems might work well. I love to cross-stitch, and it's hard enough to match thread tones if you just need more of a given color and know the number--different batches will have slightly different hues. I can't imagine anything that will undo sun bleaching and restore that thread to the exact same color. But, it's really not hard to add some design element that works with your overall pattern and conceals a flaw like this.
Login using the form on the top of the page to post feedback (if you are a registered user). If you have not yet registered, click here to do so. It's FREE!.
