This is not a blog post about dark mode, but a thought about how to write an excellent dark mode blog post.

There are already many excellent blog posts on dark mode on the market. This article is not about competing with it, but about how to create a truly excellent dark mode post.

• Clear explanation of dark mode: Without elaborating on the definition of dark mode, readers are likely to have understood its basic concepts. The focus should be on deeper details and practical applications.

• Provides multiple demonstrations: at least one simple and easy-to-understand demonstration highlights the core code (such as switching between background and text colors). Other demonstrations should cover more complex and closer to practical applications, such as processing pictures, background pictures, SVG strokes and fills, buttons, borders, shadows, etc. These details are often overlooked, but are crucial to designing dark mode UIs.

• Consider operating system-level dark mode: CSS can detect operating system-level dark mode settings, and the blog post needs to explain in detail how to use this feature.

• Operating system detection for JavaScript: If style applications involve JavaScript, JavaScript also needs to detect dark mode settings at the operating system level, which is related to the next point.

• Website Custom Dark Mode: Allows users to customize dark mode on the website, even if their operating system settings are the opposite.

• Implementation of theme switching function: This is not easy. If the website has a user authentication system, the user's theme preferences should be remembered at the account level; if not, other methods, such as localStorage (but be aware of its limitations, such as CSS is usually applied before JavaScript execution, which may lead to a brief splash when the topic is switched). Cookies may be required to send CSS for a specific topic each time the page loads.

• Citing the actual case: Analyze the dark pattern implementation of existing websites, evaluate their pros and cons, and try to contact relevant personnel for interviews. Both good and bad examples should be mentioned, and you can learn a lot from the negative cases.

• Refer to existing literature: draw on the experience of other blog posts and go further on this basis. Avoid giving people the illusion of "first creation", which will appear unnatural.

• Browser compatibility: Study the support of different browsers for related technologies, including whether there are exceptions, future support plans, and relevant instructions in the official browser documentation.

• Accessibility: Dark mode itself can be regarded as an accessibility feature, but there are also some related accessibility issues, such as the operation of the switching function, prompts for mode changes, and new color contrast calculations. The blog post should conduct in-depth discussions on this and refer to the opinions and research results of relevant experts.

The above points apply to blogging for any technical concept. By considering these aspects thoroughly, you can create better and more in-depth technical articles.

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