Utility for adding customizable grids to images. Useful for creating reference images for art.

- Drag and drop an image to upload, or click on "Upload Image" box.
- Aspect ratio is locked by default; disable this to enable zooming and dragging.
- Leftmouse and drag moves the image, middlemouse and drag moves the grid (Inverted when "move grid" is selected)
- The bottom bar controls grid properties
