They’ve just changed (quite significantly) the way the ‘+1’ & ‘share’ buttons on Google+ posts look. I thought it would be worth going back and looking at how things looked when it first launched vs how it looks now.
Below are 2 screengrabs of exactly the same Google+ post, 18 months apart. The first image shows how it looked at the time it was posted. The second image shows how it looks after 18 months of subtle, incremental UI tweaks.
Interesting to compare the 2, pick out the differences, and think about why they’ve made the changes.