Bargello needed a way to make custom patterns. Presets cover a few shapes, and that is not enough if you want your own column widths. To me it made sense to treat that like an audio wave: peaks and valleys you place yourself.
So this is a lab experiment. A column wave graph sits flush above the Bargello quilt. Blue dots up high are thin columns. Red dots down low are wide ones. The curve through those points is the same shape as the columns underneath.
Click empty space on the graph to add a peak. Drag a blue or red dot to move it. Double-click a blue peak to remove it (you always keep at least one). The first edit switches you into sculpt mode. Under Layout you can sharpen or soften the curve, and turn Symmetric on so the left half mirrors to the right. Distribute spaces the peaks and valleys you already have. Reset clears the sculpt and restores the pattern wave.
Cutting still has to match finished column widths. That is why the graph and the quilt had to agree before this shipped in the lab. If they disagree, trust the quilt.
I do not know how far this goes yet. For now you can build a custom Bargello by placing peaks and valleys instead of only picking a named pattern.