Dark Mode is still breaking your HTML emails. Here is the logic to fix it.

Email clients like Gmail and Outlook don't just "invert" colors; they apply unpredictable, proprietary rendering logic that can ruin your brand's UI. I'm currently building Mailpeek, a Vue-based suite to solve this. While building the preview engine, I had to deep-dive into how these clients actually handle color inversion. Here is the logic I used to build a reliable dark mode emulator and how you can apply it to your own emails. Building for email doesn't have to feel like coding for a browser from 2004. We have the tools in the Vue ecosystem to make this better. Dark Mode in Email: Why Every Client Does It Differently You test your email in Gmail. It looks great. You toggle dark mode and check again. Still looks great. You relax. Then a user on Gmail iOS screenshots your email and your white logo has vanished into a black background, your carefully chosen brand colours have been replaced with something you have never seen before, and your call-to-action button now blends into the su