Open is the key word and unalterable. The open kitchen, the open bar counter, the open display space, all these...

I’ve been working on a transition to using light-dark() function in CSS. What this boils down to is, rather than CSS that looks like this: :root { color-scheme: light; --text: #000; } @media (prefers-color-scheme: dark) { :root { color-scheme: dark; --text: #fff; } } I now have this: :root { color-scheme: light; --text: light-dark(#000, #fff); } @media (prefers-color-scheme: dark) { :root { color-scheme: dark; } } That probably doesn’t look that interesting. That’s what I thought when I first learned about light-dark() — “Oh hey, that’s cool, but it’s just different syntax. Six of one, half dozen of another kind of thing.” But it does unlock some interesting ways to handling themeing which I will have to cover in another post. Suffice it to say, I think I’m starting to drink the light-dark() koolaid. Anyhow, using the above pattern, I want to compose CSS variables to make a light/dark theme based on a configurable hue. Something like this: :root { color-scheme: light; /* configurable via JS */ --accent-hue: 56; /* which then cascades to other derivations */ --accent: light-dark( hsl(var(--accent-hue) 50% 100%), hsl(var(--accent-hue) 50% 0%), ); } @media (prefers-color-scheme: dark) { :root { color-scheme: dark; } } The problem is that --accent-hue value doesn’t quite look right in dark mode. It needs more contrast. I need a slightly different hue for dark mode. So my thought is: I’ll put that value in a light-dark() function. :root { --accent-hue: light-dark(56, 47); --my-color: light-dark( hsl(var(--accent-hue) 50% 100%), hsl(var(--accent-hue) 50% 0%), ); } Unfortunately, that doesn’t work. You can’t put arbitrary values in light-dark(). It only accepts color values. I asked what you could do instead and Roma Komarov told me about CSS “space toggles”. I’d never heard about these, so I looked them up. First I found Chris Coyier’s article which made me feel good because even Chris admits he didn’t fully understand them. Then Christopher Kirk-Nielsen linked me to his article which helped me understand this idea of “space toggles” even more. I ended up following the pattern Christopher mentions in his article and it works like a charm in my implementation! The gist of the code works like this: When the user hasn’t specified a theme, default to “system” which is light by default, or dark if they’re on a device that supports prefers-color-scheme. When a user explicitly sets the color theme, set an attribute on the root element to denote that. /* Default preferences when "unset" or "system" */ :root { --LIGHT: initial; --DARK: ; color-scheme: light; } @media (prefers-color-scheme: dark) { :root { --LIGHT: ; --DARK: initial; color-scheme: dark; } } /* Handle explicit user overrides */ :root[data-theme-appearance="light"] { --LIGHT: initial; --DARK: ; color-scheme: light; } :root[data-theme-appearance="dark"] { --LIGHT: ; --DARK: initial; color-scheme: dark; } /* Now set my variables */ :root { /* Set the “space toggles’ */ --accent-hue: var(--LIGHT, 56) var(--DARK, 47); /* Then use them */ --my-color: light-dark( hsl(var(--accent-hue) 50% 90%), hsl(var(--accent-hue) 50% 10%), ); } So what is the value of --accent-hue? That line sort of reads like this: If --LIGHT has a value, return 56 else if --DARK has a value, return 47 And it works like a charm! Now I can set arbitrary values for things like accent color hue, saturation, and lightness, then leverage them elsewhere. And when the color scheme or accent color change, all these values recalculate and cascade through the entire website — cool! A Note on Minification A quick tip: if you’re minifying your HTML and you’re using this space toggle trick, beware of minifying your CSS! Stuff like this: selector { --ON: ; --OFF: initial; } Could get minified to: selector{--OFF:initial} And this “space toggles trick” won’t work at all. Trust me, I learned from experience. Email · Mastodon · Bluesky

Last semester at university we were given a really cool task. We had to choose an existing company that distributes...

Check out the light in my office right now 🤩 . AI effectively, but to understand how it fits into the larger patterns of human creativity and purpose. That’s a good thing — designers are good observers. No matter what the tech, we notice patterns we notice the lack of them. So in the midst of what is likely a major, AI-driven transition for us all, it’s worth considering that the future of design won’t be about human versus machine, but about understanding the pattern language that emerges when both intelligences work together in a system. As Christopher Alexander and his cohort might have said, it will be about creating a new kind of wholeness — one that honors both the computational power of AI and the nuanced wisdom of human experience.

So here I am playing with CSS view transitions (again). I’ve got Dave Rupert’s post open in one tab, which serves as my recurring reference for the question, “How do you get these things to work again?” I’ve followed Dave’s instructions for transitioning the page generally and am now working on individual pieces of UI specifically. I feel like I’m 98% of the way there, I’ve just hit a small bug. It’s small. Many people might not even notice it. But I do and it’s bugging me. When I transition from one page to the next, I expect this “active page” outline to transition nicely from the old page to the new one. But it doesn’t. Not quite. Did you notice it? It’s subtle and fast, but it’s there. I have to slow my ::view-transition-old() animation timing waaaaay down to see catch it. The outline grows proportionally in width but not in height as it transitions from one element to the next. I kill myself on trying to figure out what this bug is. Dave mentions in his post how he had to use fit-content to fix some issues with container changes between pages. I don’t fully understand what he’s getting at, but I think maybe that’s where my issue is? I try sticking fit-content on different things but none of it works. I ask AI and it’s totally worthless, synthesizing disparate topics about CSS into a seemingly right on the surface but totally wrong answer. So I sit and think about it. What’s happening almost looks like some kind of screwy side effect of a transform: scale() operation. Perhaps it’s something about how default user agent styles for these things is animating the before/after state? No, that can’t be it… Honestly, I have no idea. I don’t know much about CSS view transitions, but I know enough to know that I don’t know enough to even formulate the right set of keywords for a decent question. I feel stuck. I consider reaching out on the socials for help, but at the last minute I somehow stumble on this perfectly wonderful blog post from Jake Archibald: “View transitions: Handling aspect ratio changes” and he’s got a one-line fix in my hands in seconds! The article is beautiful. It not only gives me an answer, but it provides really wonderful visuals that help describe why the problem I’m seeing is a problem in the first place. It really helps fill out my understanding of how this feature works. I absolutely love finding writing like this on the web. So now my problem is fixed — no more weirdness! If you’re playing with CSS view transitions these days, Jake’s article is a must read to help shape your understanding of how the feature works. Go give it a read. Email · Mastodon · Bluesky