The search feature is optional. It allows the user to enter a search term, and only cells with that search term will appear.
The table name in the Search Bar option panel should be the same as the Table Name in the Main Widget option panel.
How to Style Search Text
Use the text panel (⌘T) to change the font and font-size of the search bar.
How to Style Search Bar
You can change the fill, stroke, corners, etc.