> Despite spending hours a day looking at her phone, she literally had to check it to find out what her default color theme is; it’s that invisible to her.

Sounds like a good reason to make it automatic then, because if users have to find your state toggle in some hamburger menu, they're not going to use it if they don't even know the system has a theme applied.

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extra88 2 days ago | parent [-]

Everyone thinking about 2-state vs. 3-state controls is automatically honoring the device's color scheme setting. The controls are an extra to let users choose to not use the device setting on a particular site.

Rather than each site making its own design for such a control, I wish browsers would make it a per-site setting users could use.

	▲	georgefrowny 2 days ago \| parent [-]
		That's basically @media (prefers-color-scheme: dark). However, we should go a step further and provide a framework of UI elements that can be used consistently to create a uniform and accessible interface and they could even be pre-compiled into native controls for more efficient...hold on a gosh darn minute...