Minecraft wiki entry for Glazed_terracotta_patterns, associated text: When putting together designs with multiple colors of terracotta, keep in mind that the "centerpieces" of each color matter a lot. For example, wide curves (seen on the lime and light gray terracottas) tend to go well next to other wide curves. Light gray terracotta makes a nice corner design. Flower-y designs (seen on the white, orange, pink, and light blue terracottas) complete each other well and are often put in the center of the design. Brown terracotta is a nice way to subtly guide the viewer's eye. Putting brighter colors together also makes for aesthetically pleasing patterns. Magenta terracotta sticks out like a sore thumb and should not be used for aesthetically pleasing patterns. Its role is limited to non-decoration functions.