1743560 - Braille UTF-8 characters are not readable

Status: RESOLVED FIXED

(Core :: Layout: Text and Fonts, defect)

Description

[sau412]

Attachment: Braille UTF-8 symbols (in the middle of screenshot) are not readable in firefox for desktop.

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:94.0) Gecko/20100101 Firefox/94.0

Steps to reproduce:

I opened my page with braille UTF-8 characters and found that I cannot read them. Characters are shown as black and gray dots instead of black dots only. See screenshot.

Actual results:

After browser update braille UTF-8 characters are not readable.

Expected results:

I expected to see readable characters.

Comment 1

[sau412]

UTF-8 Braille characters fox example: ⠠⠃⠗⠁⠊⠇⠇⠑⠀⠉⠓⠁⠗⠁⠉⠞⠑⠗⠎
Site with all symbols: https://utf8-icons.com/subset/braille-patterns

Comment 2

[Jonathan Kew [:jfkthame]]

It looks like this is a question of which face of Apple Braille is used. I'm seeing the characters in comment 1 rendered with "Apple Braille Outline 6 Dot", which displays the dots as solid black and the "empty" positions of the 6-dot grid as hollow circles -- which at small sizes will basically look like gray dots.

The "Apple Braille Regular" face, which displays just the black dots -- the "empty" positions are left truly empty -- would probably be preferable. But I guess all the faces (there's also a "Pinpoint" face, and 8-dot versions of "Outline" and "Pinpoint") share the same style properties (weight, stretch, style) from a CSS point of view, and so it's unclear which one we'll get by default.

We probably need some added heuristic or even special-case code to favor the Regular face here.

Comment 3

[Jonathan Kew [:jfkthame]]

Attachment: Bug 1743560 - Prefer a face named 'Regular' over other faces in a macOS font family if they cannot be distinguished by style attributes. r=#layout-reviewers

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/5d8862496bf2
Prefer a face named 'Regular' over other faces in a macOS font family if they cannot be distinguished by style attributes. r=emilio

Comment 5

[Marian-Vasile Laza]

https://hg.mozilla.org/mozilla-central/rev/5d8862496bf2