The Reddit share button needs to be updated. It doesn't fit Reddit's current brand guidelines. The button should be orange and the logo needs to be updated. Right now the button is blue and it's using an older logo.

Brand guidelines: https://www.reddithelp.com/sites/default/files/2018-03/reddit_brand_guidelines.pdf

Logo download: https://www.reddithelp.com/sites/default/files/2018-03/reddit_logos.zip