I'm thinking, perhaps the non-visual bits of the LCL: Data modules, and everything you can place on them. The (Borland-clone) data set abstractions and swappabl

I'm thinking, perhaps the non-visual bits of the LCL: Data modules, and everything you can place on them. The (Borland-clone) data set abstractions and swappable "drivers" still make database-centric apps a joy to develop (IMO, from what little I've tested it).