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Issue 630917 link

Starred by 11 users

Issue metadata

Status: Assigned
Owner:
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Windows
Pri: 2
Type: Bug

Blocked on:
issue 534732
issue 633478



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Yu Gothic is much thinner and fuzzier than Edge/Gecko

Project Member Reported by kojii@chromium.org, Jul 25 2016

Issue description

Yu Gothic is thinner and fuzzier than Edge/Gecko.

Thin and fuzzy rendering of this font has more impact than other cases because:
1. Win10 made this as the default Japanese font.
2. This is the only Japanese font installed on non-Japanese version of Win10 (MS Gothic was added back later, but it's a legacy font with inferior quality.)

Several web developer blogged that they started using "font-weight:500" only for Chrome to avoid this problem.

Screenshots attached: Chrome, Edge, Firefox from left, hi-res and low-res.

HTML is also attached, or at http://output.jsbin.com/heneyo
 
yu-gothic.html
1.7 KB View Download
yu-gothic-lodpi-chrome-edge-firefox.png
44.0 KB View Download
yu-gothic-hidpi-chrome-edge-firefox.png
90.8 KB View Download

Comment 1 by kojii@chromium.org, Jul 25 2016

It looks to me that Edge uses anti-alias but not ClearType. Gecko looks like it uses ClearType, but still much thicker and more readable than Chrome.

bungeman@, eae@, any ideas which flags I should look into?

Comment 2 by kojii@chromium.org, Jul 25 2016

Description: Show this description

Comment 3 by kojii@chromium.org, Jul 25 2016

Same with Noto, so I suspect most modern CJK fonts are affected.
noto-hidpi-chrome-edge-firefox.png
97.2 KB View Download

Comment 4 by kojii@chromium.org, Jul 25 2016

Chrome is much worse in hi-DPI. Does this indicate something?

Comment 5 by kojii@chromium.org, Aug 2 2016

Blockedon: 633478
It has been like this for quite a while, since Win 8 iirc. The font rendering on Win 7 is also inferior than Firefox, but close.

And as a side note, also starting from Win 8 (8.1), Microsoft's pre-installed applications don't use clear-type any more for better support to rotatable devices (such as tablet), since ClearType exploits RGB order of pixels in the monitor, which is not consistent when rotating. That explains why Edge doesn't use ClearType.

I attached another image for SimSun, which is not the default font for *Windows* since Win 7 but for some who-knows-why reasons, Chrome still use it as default Simplified Chinese interface font (any chance to fix that any soon?  issue 587072 ), so it affects lots of people, too.

Also, is my previous issue helpful or related to this one? I think we're talking about the same thing. Issue 534732

And there is a "work-around" in Chrome extension store, may be worth a look: https://chrome.google.com/webstore/detail/font-rendering-enhancer/hmbmmdjlcdediglgfcdkhinjdelkiock
SimSun.png
57.9 KB View Download

Comment 7 by e...@chromium.org, Aug 9 2016

Cc: kulshin@google.com jsc...@chromium.org

Comment 8 by kojii@chromium.org, Nov 4 2016

Blockedon: 534732
Is this still an issue?
Yeah, pretty much.

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