Now handles dark screen mode.

Rank ten displayed as "10" rather than "T".

Fixed problem so that the game is ended when a player scores exactly 100 points. Added new preference to drop drawn card as first card or last card.

You can choose the background color to be green or parchment. You can run a one minute demo of an example game that shows you how to drag and drop the cards. You can knock by dragging and releasing the discard card with its bottom left corner inside the top card of the discard pile. When you can knock, the "Knock" button will be highlighted to indicate that action will be taken when you drop the card.

If you are on the game screen, you can swipe right on the upper part of the screen to go to the menu screen and you can swipe left to go to the preferences screen. Show "Knock" and "Gin" buttons only when knock and gin is possible. You can gin by dragging card to discard pile without having to highlight it and tap the "Gin" button. You can gin by just tapping the "Gin" button without having to highlight the card to discard. Eliminated GameCenter since it was not being used.

Load card images in background to improve responsiveness of app.

You can play rated games against the computer without using Game Center. You can set preferences to highlight drop sites to indicate when you can put down the card(s) that you are dragging. The cards now have full face images.

A learning mode helps you to improve your play. The computer can suggest what card you should discard and whether you should draw a card or pick up the discard. The selection of cards is done by highlighting rather than by up jogging. You can choose to show outlines for the discard pile and the melding area when they are empty. There are several bug fixes.

Fixed a bug when one clicked the "Draw card" button, then clicked a card in the hand, and finally clicked the "Discard" button (likewise for the "Knock" and "Gin" buttons).

You can play rated games against the computer and compare your rating with other players on the leaderboards.