I think you misunderstand what the post means. The data that is displayed by the client in the actual fields is in a database, yes. For example, when you click on a mechant and get loaves of bread, water flasks, and muffins, is stored on the server in the database. However, the server doesn't tell the client "display the buy window in the following graphical way". Thats all client side, and something we can't change unless it can be modified through the UI options.
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