Crop Corner

Open a new canvas the size you want. Insert a square and fill it with the color of your choice. Then click on Format - Resize Object to fit canvas Stretch to fit. Doesnt look like much; but now we will do the finessing!! Click on Touchup and Blending Brush. Choose a start position. Here I used a start position in the blue and started my blending on the right hand side. Just ran my blending brush up and down (or across) the page randomly in strokes as long as I could. Move the start position to the blue or the center and keep going.