Histogram of maximum agreement per galaxy per class from ten inspectors. From left to right and top to bottom, we show the maximum agreement distribution in the upper panels for: the disk visibility, bar-like features, bar lane lengths (BL_length), bar lane shapes (BL_shape), central ring features, spiral arm features, and non-central rings. For each feature, we require a minimum agreement threshold (red dashed line) to consider a classification as reliable. For features with only two options to chose from this is set to 70%, for other features it is 60%.