Spline Segmentation ROI Tool

Here we demonstrate how to use spline segmentation ROI tools on a single viewport

1. Select a segmentation index
2. Select a spline curve type
3. Draw a spline curve on the viewport
4. Repeat the steps 1-3 as many times as you want
5. Notice that each segment index has a different color assigned to it
6. Change the style for the segmentation
7. Confirm the style is applied properly