- From: Kevin Muldoon via GitHub <sysbot+gh@w3.org>
- Date: Thu, 18 May 2023 21:14:01 +0000
- To: public-design-tokens-log@w3.org
As I consider this more, it seems the correct way to express typography size as defined in design programs such as Sketch, Figma, AdobeXD, and Adobe Illustrator is the unit of POINTS, or 1/72". In a traditional sense, the units of pixels/points were considered identical, but this is no longer true. Consider iOS Retina displays, and Android 1x, 2x, 5x. For the web, computer monitors will vary from 1/96 +/- 20px. Pixels do not have an intrinsic physical size, whereas points do. To complicate things even more, a CSS Pixel defines a pixel's physical size to 1/96, which I find curious because I have never typed 22.66 in an application to get the visual appearance of 17pt size font. Personally, it is difficult to believe that 22.66px on screen (and even considering a standard observer distance of X viewing distance) is representative of the physical size of 17pt as printed on paper. The ultimate pass/fail is when the coded implementation matches designs created in a design program. At normal user zoom. Design programs, as mentioned above, respect the 1/72" standard for both pixels and points. So... Rather than **px**, the most correct absolute value would be **pt**, taking care to say **NOT A CSS PIXEL POINT** but a standard Point. This is the stuff that burns my brain. -- GitHub Notification of comment by caoimghgin Please view or discuss this issue at https://github.com/design-tokens/community-group/issues/218#issuecomment-1553653766 using your GitHub account -- Sent via github-notify-ml as configured in https://github.com/w3c/github-notify-ml-config
Received on Thursday, 18 May 2023 21:14:03 UTC