Do you strongly dislike straightening your rolled-up uv islands in blender? Are you tired of having to use follow active quads to re-unwrap your curved uv islands to attempt to straighten them out? Well now you will never manually straighten your curved uvs again with SweetRoll™!!!
Just select a vertex in the UV editor, right-click and select "Sweet (Un)roll" and your semi-circular uv strip will be straight in the blink of an eye!
*May require the object to be rotated if the unroll does not work on the first try. Default setting is to use the bottom left most vertex on the uv island and start searching for neighbors toward the left direction. Please use on only one island at a time.