Setting
Appearance — Accent Color
Pick the accent color used for buttons, links, and highlights across the site. Changes apply instantly and save automatically — no need to click Save Settings for this one.
Appearance — Sales/Invoices/Estimates Tab Colors
The Sales, Invoices, and Estimates tabs normally derive their 3 shades automatically from your Accent Color above. Switch to Custom to pick each one yourself. Changes apply instantly and save automatically.
Customer Grid — State Column Display
Choose how the State column is shown on the Customers grid.