- From: Alastair Campbell <acampbell@nomensa.com>
- Date: Sun, 14 Oct 2018 22:48:16 +0000
- To: Wayne Dick <wayneedick@gmail.com>
- CC: public-low-vision-a11y-tf <public-low-vision-a11y-tf@w3.org>
- Message-ID: <AM5PR0902MB2002B6E55E1B399E0D774EABB9FC0@AM5PR0902MB2002.eurprd09.prod.outlook.>
Hi Wayne, > Now the normalized Verdana exceeds the size of Times New Roman by 0.05em. We have text-spacing that requires people test for 0.12em of extra letter spacing, I’m not sure what extra you are trying to add? People can change fonts now, what is the content-requirement for designers & devs? For the icon fonts issue we need to get that technique written up & put in front of the group. If there is push-back on that, then we’d have a new SC requirement. NB: I don’t think it’s a good CSS practice to explicitly set every element with a font-family, you just apply it to html or body and everything under that inherits the font-family unless otherwise specified. Cheers, -Alastair From Wayne: Post Script: I have tried this on CJK Languages, Arabic, Vietnamese and Western Languages. All that is needed is to have members from each country to supply a test set of characters. For latin languages the test set is: !"#$% &'()* +,-./ 01234 56789 :;<=> ?@ABC DEFGH IJKLM NOPQR STUVW XYZ[ ]^_`a bcdef ghijk lmnop qrstu vwxyz {|}~ Best, Wayne On Fri, Oct 12, 2018 at 11:10 AM Wayne Dick <wayneedick@gmail.com<mailto:wayneedick@gmail.com>> wrote: The ability to change font is important. I believe something like this would impact developers very little: Normalized change of font. If the user adjusts font size so that the average character width is 0.5em for 1em font-size, then the user may change font to whatever family they choose. Example: Suppose you choose Verdana width for 1em is 0.576em to replace Times New Roman width for 1em is 4.718. Multiplying the font size of Verdana by 0.8680 = 0.5/0.576 gives 0.8680 em. The character width is 0.4994em really 0.5. Now the normalized Verdana exceeds the size of Times New Roman by 0.05em. See http://nosetothepage.org/TextAccessibility/FontCompare.html. To handle icon font problem caution users to avoid the i and span element in font family change. Caution authors to use role="img". For math just have users avoid math like p:not(math p). For users also caution to avoid the * selector favoring explicit selectors like: html, body, div, /*span,*/ applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, /*i,*/ center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td{ font-family:"Lucida Sans Unicode", "Lucida Grande", sans-serif; } (generated mechnaically) Access to font is pretty easy. I am willing to make my font normalization programs open source. Wayne On Fri, Oct 12, 2018 at 8:58 AM Alastair Campbell <acampbell@nomensa.com<mailto:acampbell@nomensa.com>> wrote: Hi Jim (and LVTF), Pre-TPAC, it would be useful to know if there are any potential SCs you’d consider for a WCAG 2.2? We haven’t determined whether the group will tackle that yet, but part of the decision would be: Is it useful to do a 2.2? Looking back, I couldn’t see much in the LVTF ‘defer’ list here: https://github.com/w3c/wcag21/issues?utf8=%E2%9C%93&q=is%3Aissue+label%3ALVTF+label%3ADefer+ Printing customised text perhaps? Given the shape of 2.1 now, are there gaps or things to tighten up that can work in the 2.x structure? Perhaps a couple of additional SCs that tighten up current ones? If there are others that didn’t make it to a github issue in the first place, now is the time to say so. I’m not sure who’s attending TPAC, but if there’s a short overview of 1-6 SCs I can run through them which would be very useful for the discussion. Kind regards, -Alastair
Received on Sunday, 14 October 2018 22:48:50 UTC