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Many LaTeX commands are used to create references to other parts of the document, for example \cite{}, \ref{} and \includegraphics{}, which reference bibliography entries, labels and image files respectively.

In these cases Texpad is capable of creating a short summary of the referenced entity, which is displayed in the Autocomplete window. It is also displayed over the editor if you place the cursor in the command and wait. For BibTeX entries, Texpad will display as many BibTeX keys as is practically possible, for Labels Texpad will attempt to display the context of the label (section title, etc.), and for images it will show a preview of the included image.