1. You can change the value of an EncEntry's `text` attribute, for example:
original_text = "This is the original text." your_entry = EncEntry(text=original_text) your_entry.text = original_text + "This is new text."
2. All visual aspects are handled by Ren'Py's Styles system. The styles used by the Encyclopaedia's UI are located at the bottom of `screens.rpy`.