<p>It would be valuable to have options for the background image.</p>
<p>1. Original: no change to image</p>
<p>2. Tile: Fill the screen with multiple replications of the image. Useful for symetrical patterns</p>
<p>3. Stretch: A single image stretched to fill the entire screen.</p>
<p>4. Crop: To fill the projection screen with the image maintaining the aspect ratio.</p>
<p>5. Letter box: Showing the full image at maximum zoom buffering the short sides to fill the screen with the image again maintaining the aspect ratio.</p>
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