Reader-added tags include "Never give up", "The finisher meal was the usual, after all", and "Following the standard ten-plates". (Originally switches テンプレ/tenpure, a truncation of the English "template", with the homophonic 店プレ, a home page creation service for restaurants and stores. The site name is already a pun on its own, of course.)
Maybe that should be translated more like "Stepsis-chan's characteristic trait is her eyes, so I can play around with her hairstyle as I want... maybe have her wear braids when it's just the two of them at home and such." Otherwise, I'm not really sure what 記号的 is supposed to mean...