Anti-aliasing

[IanField90]

We can add this during each method using this: g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

Not an issue, just noting down for once the repo has been tidied.

[IanField90]

Added, now initial pen doesn't draw back, but after click works as expected.