Talos Dark Slack Theme How to Install Manually Copy the values below. #191E2A,#121016,#1164A3,#FFFFFF,#232834,#D1D2D3,#8FE01D,#EF4444,#232834,#D1D2D3 In Slack, paste the values in any Channel or Conversation - such as Slackbot Click on the "Switch sidebar theme" button to install the theme