I have been nearly drowned in requests for larger cards and better use of screen space. This release should provide that, in many if not all cases. The significant change is that downward fans are now allowed to extend all the way to the bottom of the window and if necessary, even below the bottom of the window (but never so far that you can't clearly see or click on all the cards).
If that doesn't quite make sense, just try it: download b17, and try selecting a larger card size in each game that you play. That's important: you may not see a change unless you request a larger card size! To ask for larger cards, look at the card size menu (Decor > Card Size) and choose something larger than your current size. I recommend simply asking for the largest size ("Huge"); if that won't fit, Solitaire Till Dawn will give you the largest size that will fit your screen.
That lets Solitaire Till Dawn make better use of vertical space. There is also a small change to the use of horizontal space: I've added about 10 more pixels of horizontal space between the cards and the game drawer tabs on the left side of the window, by popular request. This means that every game will require that much more horizontal space. If you have a game window that is already using the maximum width of your screen, it's possible that this small expansion will mean that the card size you were using will no longer fit, and you will have to use a smaller card size. I think that's unlikely to happen. But if it does, please try selecting a larger card size just to be sure. If that doesn't work and you are still stuck with smaller cards, let me know and tell me which game you were playing and what size screen you have, please.
In addition to the card size changes, b17 includes a fair-sized list of less-obvious improvements and bug fixes which you can read about in the Read Me file that comes with the download.
I am aware from your bug reports (thank you!) that a crash can occur during normal play. This is now Bug ID 86. Normally I would try to fix such a bug before bringing out a new release, but I want to make b17 available well before b16 expires at the end of May. I will do my best to fix this issue for b18.