Template: Using the Company Slack Theme
Note: This is NOT required, but it's fun. If you're in multiple Slack instances, it can also be extremely helpful to customize them for easy visual identification
Customizing your Slack theme
To use the GreatCo. Slack theme, go to Preferences>Themes>Colors, and paste these values into the long text box (so you don't have to update each color individually).
#242C38,#121016,#7545E6,#FFFFFF,#E232FE,#FFFFFF,#F21969,#005DFF,#4BE4B4,#090B0E