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. 3. The information processing device as set forth in claim 2 , wherein the at least one processor: determines which word contained in the text string has been selected by the input of the user; generates, for the each word contained in the text string, the translation image which is an image showing a result of translating the each word into another language; and controls the display device to display the translation image corresponding to a selected word such that the translation image is superimposed on an image corresponding to the selected word which (i) has been determined by the at least one processor to have been selected and (ii) has been decorated.