About the VTube End Length Angles

The angle value in the Ends section of the Inspection Data tab refers to the angle deviation of the MEASURED ALIGNED tube centerline vector in relation to the MASTER tube centerline vector. You can see from the first image that the centerline vector for the MEASURED ALIGNED tube angle (pink) is clearly deviating from the MASTER (white) tube. In the second image, you can see that the MEASURED ALIGNED (pink) tube and MASTER (white) tube are both inside the blue envelope, and the angle value is green because the angle deviation is 0.0259, which is smaller than the tolerance allowed. 

The tube model in the blue viewport screen will have a yellow band around the end if the end angles are out of the allowed tolerance, as shown in the first image.