Download of BetterTDeck for TweetDeck 4.8.7 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available.
Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The software is categorized as Communication Tools. This free Mac application was originally created by Damien Erambert.
From the developer:
Better TDeck helps you improve your experience on the TweetDeck web with theme options, GIFs, emoji, interface tweaks, and a lot more. Therefore, the tool supports accent colors, alternative themes, advanced muting, and powerful customization. Also, it lets you add emoji through an integrated picker or by using shortcodes.
You may want to check out more software for Mac, such as TweetDeck by Twitter, TweetDeck or Tweeten, which might be related to BetterTDeck for TweetDeck.