Change clock deco and add smoke to train
Previously the clock wasn't necessarily readable due to the deco surrounding it. The deco has now been changed to increase readability.
And because it's fun: The commit also introduces procedurally generated smoke that is coming out of the train chimney. This reduces the performance it a bit currently, but a rewrite is on the horizon lel.
Signed-off-by: Sophie 'Tyalie' Friedrich dev@flowerpot.me