Realisation / revelation!

To my joy I have just realised I can use white in digital media where I could not print white before! Having always made things for print my mind has narrowed to always conform to printing restrictions - like the simple fact that I can not afford to print white (i.e. onto coloured or tracing paper) and have always had to find ways to work round these issues. But digital is great - white text can lay over an image, fade in and out, etc - it seems the only restriction now is my imagination.