2. The information processing device as set forth in claim 1 , wherein: the display device displays, on the screen, a decorated image in which a portion indicating the text string has been decorated; the at least one processor: decorates each word contained in the text string; and controls the display device to display the decorated image in a case where the translation image is not to be displayed.
2. The information processing device as set forth in claim 1 , wherein: the display device displays, on the screen, a decorated image in which a portion indicating the text string has been decorated; the at least one processor: decorates each word contained in the text string; and controls the display device to display the decorated image in a case where the translation image is not to be displayed. 6. The information processing device as set forth in claim 2 , wherein the at least one processor controls the display device to display an image in which the portion indicating the text string contained in the captured image has been underlined.