Note: This article applies to versions Boulevard 2022 and prior. See Set Default Profile Tab, Change Font Sizes, & More for Boulevard 2023 and higher.
From the Edit menu, select Settings, then Alerts & Colors (or from the Contacts group on the main toolbar, Settings then Alerts and Colors).
Alerts & Filters 
Alerts are visual reminders that allow you to continue with your task, whereas a message box requires you to acknowledge the message before continuing. You can change the location and how long alerts appear using the Alert Location and Visible Duration fields. View
The filter slide outs option is enabled by default and allows you to quickly access filters for the list you are viewing.
Colors & Font
Choose whether or not color coding is enabled, what each color represents, as well as the font face and style for the customer, address and unit, and product lists. View