BUR #15877 has been rejected.
create alias casual -> casual_clothes
The term "casual" is very vague, being just as descriptive of a living room or a character napping (or even perhaps someone who only plays gacha games) as it is of casual attire. This alias removes any ambiguity the tag's name gives to its purpose.
As a side note, I also take issue with the wiki clause denoting that this tag is only for characters with a non-casual design wearing an alternate costume. However, this alias is beneficial regardless of which way we decide to go regarding said clause, and as such it shouldn't stand in the way of this thread's BUR.
Updated