Cobalt2-Slack

Cobalt2-Slack with toned-down hover styles and higher-contrast active presence color.

Option #1

1. Preferences → Sidebar Theme
2. Paste #182E40,#1F4662,#1D425D,#FFFFFF,#1D425D,#FFFFFF,#FEBD29,#FEBD29,#1F4662,#FFFFFF