This is a bit off-topic, but I think there may be people here that has already dealt with this doubt.
When including a typical 2D plot, we usually put a label on the left border. My question is: do you usually add a symmetric padding, so that the figure appears actually centred in the text?
This is a document with two figures —the first one has been added a symmetric padding, while the second one has no padding at all:
Which of both is the best option, according to classical laying-out rules?