General Design
The General Design panel sets the color palette and border styling LearnDash applies sitewide. Other panels build on these base settings instead of redefining their own colors and borders, so a single change here can cascade across your site. For example:
Typography
The Typography panel sets the text sizes and text colors LearnDash uses sitewide. Sizes are grouped into five tiers, from section headings down to small labels. Colors start from one base text color, and more specific color settings override it where needed.
Buttons
The Buttons panel controls every LearnDash button in one place, so you don't have to restyle buttons on other panels. These styles only affect LearnDash buttons, such as previous/next lesson navigation, Mark Complete, and expand all. Buttons used by the third-party plugins Design Upgrade Pro supports follow these styles too.