Let’s Say You Were Going to Write a Blog Post About Dark Mode

This is not that blog post. I'm saying let's say you were.

This is not a knock any other blog posts out there about Dark Mode. There are lots of good ones, and I'm a fan of any information-sharing blog post. This is more of a thought exercise on what I think it would take to write a really great blog post on this subject.

• You'd explain what Dark Mode is. You wouldn't dwell on it though, because chances are are people reading a blog post like this already essentially know what it is.
• You'd definitely have a nice demo. Probably multiple demos. One that is very basic so the most important lines of code can be easily seen. Perhaps something that swaps out background-color and color. The other demo(s) will deal with more complex and real-world scenarios. What do you do with images and background images? SVG strokes and fills? Buttons? Borders? Shadows? These are rare things that sites have, so anyone looking at designing a Dark Mode UI will come across them.
• You'd deal with the fact that Dark Mode is a choice that can happen at the operating system level itself. Fortunately, we can detect that in CSS, so you'll have to cover how.
• JavaScript might need to know about the operating system choice as well. Perhaps because some styling is happening at the JavaScript level, but also because of this next thing.
• Dark Mode could (should?) be a choice on the website as well. That servers cases where, on this particular site, a user prefers a choice opposite of what their operating system preference is.
• Building a theme toggle isn't a small job. If your site has authentication, that choice should probably be remembered at the account level. If it doesn't, the choice should be remembered in some other way. One possibility is localStorage, but that can have problems, like the fact that CSS is generally applied to a page before JavaScript executes, meaning you're facing a "flash of incorrect theme" situation. You might be needing to deal with cookies so that you can send theme-specific CSS on each page load.
• Your blog post would include real-world examples of people already doing this. That way, you can investigate how they've done it and evaluate how successful they were. Perhaps you can reach out to them for comment as well.
• You'll be aware of other writing on this subject. That should not dissuade you from writing about the subject yourself, but a blog post that sounds like you're the first and only person writing about a subject when you clearly aren't has an awkward tone to it that doesn't come across well. Not only can you learn from others' writing, but you can also pull from it and potentially take it further.
• Since you'll be covering browser technology, you'll be covering the support of that technology across the browser landscape. Are there notable exceptions in support? Is that support coming? Have you researched what browsers themselves are saying about the technology?
• There are accessibility implications abound. Dark Mode itself can be considered an accessibility feature, and there are tangential accessibility issues here too, like how the toggle works, how mode changes are announced, and a whole new set of color contrasts to calculate and get right. A blog post is a great opportunity to talk about all that. Have you researched it? Have you talked to any people who have special needs around these features? Any experts? Have you read what accessibility people are saying about Dark Mode?

That was all about Dark Mode, but I bet you could imagine how considering all these points could benefit any blog post covering a technical concept.

The post Let’s Say You Were Going to Write a Blog Post About Dark Mode appeared first on CSS-Tricks.

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