Tweak subheading colors

shared/components/TeamLogo.js

@@ -1,13 +1,12 @@
 // @flow
 import styled from 'styled-components';
-import { darken } from 'polished';
 
 const TeamLogo = styled.img`
   width: 38px;
   height: 38px;
   border-radius: 4px;
   background: ${props => props.theme.white};
-  border: 1px solid ${props => darken(0.1, props.theme.sidebarBackground)};
+  border: 1px solid ${props => props.theme.divider};
 `;
 
 export default TeamLogo;

shared/styles/theme.js

@@ -110,7 +110,7 @@ export const dark = {
   menuBackground: lighten(0.015, colors.almostBlack),
   menuShadow:
     '0 0 0 1px rgba(0, 0, 0, 0.1), 0 8px 16px rgba(0, 0, 0, 0.3), 0 2px 4px rgba(0, 0, 0, 0.08)',
-  divider: colors.slate,
+  divider: darken(0.2, colors.slate),
   inputBorder: colors.slateDark,
   inputBorderFocused: colors.slate,