Could you run Slack web in Chrome, and find or make a userstyle that would tighten it up?<p><a href="https:&#x2F;&#x2F;userstyles.org&#x2F;styles&#x2F;browse&#x2F;slack" rel="nofollow">https:&#x2F;&#x2F;userstyles.org&#x2F;styles&#x2F;browse&#x2F;slack</a>