Dark Mode is a design trend that uses a darker color palette for low-light or nighttime environments. It has gained popularity in recent years, and many people prefer it because it is easier on the eyes, reduces screen brightness, improves content legibility, and suits personal preferences. There are three types of color schemes that email clients use to apply Dark Mode to emails: no color changes, default Dark Mode, and custom Dark Mode. Different email clients handle Dark Mode differently, and some allow email designers to target Dark Mode with their own styles using CSS. The level of support for Dark Mode varies among email clients, and designers need to optimize their emails for Dark Mode by following certain steps, such as optimizing images, enabling Dark Mode in email client user agents, and adding Dark Mode styles using media queries
Ultimate Guide to Dark Mode [+ Code Snippets, Tools, Tips from the Email Community]