AA_to_R                 Helper functions for making geometric
                        calculations.
basicPieceGrobs         Piece Grob Functions
game_systems            Standard game systems
grid.piece              Draw board game pieces using grid
grid_shape_grobs        Grid shape grob utility functions
grob_fn_helpers         'pieceGrob' helper functions
op_transform            Oblique projection helper function
piece                   Create rayrender objects
piece3d                 Draw board game pieces using rgl
pmap_piece              Create graphics using data frame input
pp_cfg                  Configuration list R6 object
pp_utils                'piecepackr' utility functions
save_piece_images       Save piecepack images
save_piece_obj          Save Wavefront OBJ files of board game pieces
save_print_and_play     Save piecepack print-and-play (PnP) file
