These functions work if you use them in CSS, but not if you use them in the theme-color meta tag. To edit the Title Tag, replace the existing SEO title with an optimized Title Tag of 60 to 70 characters. To edit the Title Tag and Meta Description, scroll to the bottom of the edit page until you see the Yoast SEO settings. Safari 15 is the first browser to support lab(), lch(), and hwb() color functions. To edit the H1 tag, simply edit the page name. hsla() applied to the theme-color meta tag New color functions This has the effect that the light orange color looks like dark orange. The only exception is Safari on macOS it interprets the transparency, but it seems like the transparent color has a black baseline. Browser with a transparent theme-color meta tagĪll browsers interpret hsla() and rgba(), but they set the alpha value to 1. The PWA on Android falls back to theme-color defined in the manifest.json, which we’ll talk about in a bit. All regular mobile browsers don’t change color and display the default tab bar, but Safari on macOS and the Chrome Canary PWA on macOS turn the tab bar black. Transparent is a CSS color and used in the theme-color meta tag most browsers do what you’d expect. Actually, they are supported in most browsers, but the results aren’t very consistent and sometimes unexpected. HEX codes, rbg(), hsl() and keywords are well and consistently supported, but colors that include transparency: not so much. We’ll talk about that later, but first let’s look at some limitations. This is awesome because it allows us to do some pretty cool stuff with JavaScript. Looking at Chrome 90 on an Android Galaxy S20Īll supported browsers also support hsl() and rgb(). You should see the list of posts on your WordPress sidebar. Here’s how: From your WordPress admin sidebar, navigate to Posts -> All Posts. The theme-color meta tags supports CSS colors in any form: keywords, rgb(), hsl() or hex code. To add a meta title using the Yoast SEO plugin, you have to go to the specific post you want to work on and compose it there. I’ve created this theme-color testing CodePen to verify that. One of the first questions that came to my mind was “Can we use color keywords, hsl(), rgb(), too?” According to the HTML spec, the value of the attribute can be any CSS color. Hex color support is great in all supported browsers. Īccording to tests I made earlier this year, this works in Chrome, Brave and Samsung Internet on Android, installed PWAs in Chrome and now also in Safari Technology Preview. Here’s how I’ve been using the theme-color meta tag for the past few years: just a good ‘ol hex code for the content attribute. That was only temporary, starting with release 128 it supports it again. Heads up! Safari removed support for the theme-color meta tag in Safari Technology Preview (127). I never really took much note of the theme-color meta tag, but now is a good time to learn about its features and limitations and try to discover some interesting use cases. That’s exciting news because now the first desktop browser supports this tag and it also supports the media attribute and the prefers-color-scheme media feature. Starting with Version 15, Safari supports the theme-color tag both on macOS and iOS.
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