Owner's Manual
Page 27
...: If a setting cannot be combined with a previously selected setting, the outlines of that box will be kept until you switch your machine off. No icon means that this setting is kept until you GHDFWLYDWHLW 3UHVVWKHVHWWLQJVPHQXEXWWRQDJDLQWROHDYHWKH settings menu.
...: If a setting cannot be combined with a previously selected setting, the outlines of that box will be kept until you switch your machine off. No icon means that this setting is kept until you GHDFWLYDWHLW 3UHVVWKHVHWWLQJVPHQXEXWWRQDJDLQWROHDYHWKH settings menu.