Themes and branding allow Salesforce app developers to customize the look and feel of their apps to match their company’s branding and accessibility standards. One of the features of themes and branding is the ability to select a brand color, which is the primary color used for buttons, links, and highlights. Salesforce automatically generates a color palette based on the brand color, which includes accessible colors that meet the WCAG 2.1 contrast ratio guidelines. This ensures that the app is visually appealing and accessible to users with different color vision abilities. Developers can also customize other aspects of the theme, such as the logo, page background, and default font. References: [Themes and Branding Basics], [Accessibility in Salesforce]