管理者設定の「カテゴリスタイル」とは何をするものですか?

What does the admin setting “category style” actually do?

It’s how the colors of each category are displayed. You should be able to see the option change when you click a selection.

「いいね!」 3

It changes the style of the category tag displayed in the latest list eg:

Bullet:

Box:

You may need to refresh your page after changing the setting to see them take effect.

「いいね!」 6