Here's a part-philosophical, part-legal question for you all...
Let's say I see a pattern for a quilt. I really like this pattern and want to make one. [The pattern in question is just a simple series of boxes of various sizes and colors.] Looking at the pattern picture, I do my calculations and make my own version of this design.
Must I refer to the original pattern in the name or description of my version? Am I guilty of "quilt plagiarism"?