This is such a helpful post! Accessibility is so often overlooked but so important for engagement and inclusivity. Another thing to consider is Dark Mode! A growing number of people read emails with Dark Mode enabled, and it can sometimes mess with how your content looks if it’s not optimized. We have a great article on this that explains how different email clients adjust colors in Dark Mode, and what you can do to design with that in mind. Testing in both modes can really help make sure your emails look great for everyone.