1. Adjusted the position of the minefield at the beginning of the game. Now there is a great probability to open a large blank area at the beginning of the game. 2. Adapted to the style of the text under the zoomed-in window, by delaying the drawing to the window in equal proportions instead of directly zooming in after drawing, the text now appears clearer in a larger window. 3. Fixed an issue that several texts covered pictures after drawing.