richTextBox1.Text="To select the range of frames, simply use the boxes in the bottom center of the window to adjust which frames are displayed and saved. If the range is out of bounds, the GIF may appear choppy or simply stop.";
richTextBox1.Text="To change the playback speed, simply slide the playback speed track bar left or right. Left slows down the GIF, and right speeds up the GIF.";
richTextBox1.Text="To resize and export the GIF, click File->Resize. A dialog window will appear prompting you for a new width and height. Enter the desired sizes and click save to save the GIF as normal.";