Classification scheme used in the visual classification, including examples from the galaxy sample analyzed in this study. The colored boxes, green, yellow, purple, and red, indicate the four main categories of disk, compact/spheroidal, interacting/merger, and undefined. The + Companion and + Lens classifications are nonmutually exclusive, meaning a galaxy could belong to any of the main categories, while also being identified as having a companion or a lensed system. The blue squares inside the disk category correspond to the five non-exclusive morphological features that a disk galaxy can have.