8. A method comprising: under control of one or more computer systems configured with executable instructions, while in a first input mode that restricts display of an input to a first set of characters, causing, via one or more computing devices, display of one or more characters of the first set of characters in a first manner; and while in a second input mode that restricts display of an input to a second set of characters that differs from the first set of characters, causing, via one or more computing devices, display of one or more characters of the second set of characters in a second manner that differs from the first manner.
8. A method comprising: under control of one or more computer systems configured with executable instructions, while in a first input mode that restricts display of an input to a first set of characters, causing, via one or more computing devices, display of one or more characters of the first set of characters in a first manner; and while in a second input mode that restricts display of an input to a second set of characters that differs from the first set of characters, causing, via one or more computing devices, display of one or more characters of the second set of characters in a second manner that differs from the first manner. 11. The method as recited in claim 8 , wherein the first set of characters and the second set of characters comprise at least one common character.