Tip: Gimp remove red lines

If you have scracths, dust or anything that makes your pictures with lines or bands, apply the filter disparasite, check adaptative, uncheck recursive, radius =1,black level = -1, white level = 256
And that's all

Tip for WPF Mess Resizing

When you begin to add containers and controls inside a WPF and you resize the form, you realize that the mess that happens, what you should do to keep the form is change the main grid container to a canvas, and you will have the control again.