931 Modern Era gimmick puzzles

A means some of the answers have been fixed up because they could not be determined by parsing the grid in the usual way. This happens when answers go backwards or turn corners or do other odd tricks. (485 grids)

D means the way the puzzle is displayed has been enhanced. This happens if certain letters are highlighted or replaced or drift outside the grid, or if there are animations. These are not necessarily gimmicks. Often we have just included special highlights to make the theme clearer. (686 grids)