This is noticeable on Win7/64 bit - Version 52.0.2743.0 canary (64-bit)

Seems like an intended behavior.

Marking with appropriate labels so that this can be addressed properly.

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This is because the size of icons was reduced from 19x19 down to 16x16 (which is a pretty significant reduction).  I think sgabriel was aware of this risk, but bringing it back to his attention.  Also +estade FYI.

To some extent, we can say that it's up to extension developers to make this work, but, on the other hand, this is a pretty common feature for browser actions, and it should be generally readable.

I believe that affects all OS'es?

opensuse x64 here

Win 8.1 Pro here.  I imagine it hits all platforms.

Yes, since this results from the MDification of chrome, this will hit all platforms.  sgabriel@, any thoughts here?

Evan, I do not remember what size we ended up using. My spec says 9pt are we reducing the font size when reaching 3 digits?

What was the original font size?

we use gfx::FontList::DeriveWithHeightUpperBound with the height of the badge. So it's basically the biggest size that is small enough to fit inside the badge. For one reason or another, we bottom-justify the text which is why there's slightly more space above than below in the above badge.

I suspect the height of the font in this case is taking into account certain characters with ascenders that would stretch above a 6 or a 2.

i think simply that icons now are a bit smaller (it is noticeable). 1-2 pixels.

This seems to work a bit better on my local machine than on the screenshots posted above. I wonder if the base font for this machine is the source of the problem (perhaps it's a font that handles more non-latin characters?).

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nevertheless, I have a potential improvement posted up here: https://bugs.chromium.org/p/chromium/issues/detail?id=613576

@estade, it looks like you just linked this bug?

whoops - https://codereview.chromium.org/2012313002/

Re #10. Icons are smaller but I don't think it has any impact on the badge which is a different UI surface. 

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/8ad66522f53d6d74da96d2c31f5af7c72bfb3673

commit 8ad66522f53d6d74da96d2c31f5af7c72bfb3673
Author: estade <estade@chromium.org>
Date: Fri May 27 01:41:00 2016

Use a larger font in the extension badge when possible.

BUG= 613576 

Review-Url: https://codereview.chromium.org/2012313002
Cr-Commit-Position: refs/heads/master@{#396347}

[modify] https://crrev.com/8ad66522f53d6d74da96d2c31f5af7c72bfb3673/chrome/browser/ui/extensions/icon_with_badge_image_source.cc

Can those who were experiencing this problem try canary and see if it's gotten any better?

Well, now it's at least more visible. It's still smaller than non-MD version, but certainly better.

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Moving this nonessential bug to the next milestone.

For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot

Could  Issue 617089  be related to your fix?!

 Issue 612748  has been merged into this issue.

There is still a lingering problem that may be related to this: notice that the whitespace above the badge text is very inconsistent. There's significantly more of it above/to the right than below/to the left.

Attaching a magnified screenshot.

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I have related but kinda opposite issue: icon text is too large (or trimming is too aggressive), hence even 5 digits won't fit in anymore, effectively rendering some extensions useless (see the screenshot, exchange rate is not readable any longe). It was fine before most recent Chrome crash/update.

OSX 10.11.6 Beta (15G7b)
Version 52.0.2743.33 beta (64-bit)

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Can confirm #24; before, badge could hold 5 characters.

estade@, can you look into #24/25?

Here's something relevant to #24: https://bugs.chromium.org/p/chromium/issues/detail?id=154270

From my tests with non-MD interface, the limit is actually closer to 4 characters. "1111" displays fully while anything over that is clipped without "...". For example, "mmmm" is clipped to "mmn" (where n is half of m)

Documentation expressly says "Because the badge has limited space, it should have 4 characters or less."

I think before V52 an extension badge could fit 4 charactes + a punctuation sign, i.e. 23.23 or 00:00 was fine, but with the new font punctuation makes text too wide. I think, a lot of extensions are negatively affected by this. 

filed bug 619607 for 24/25

How to use this diff patch ? Please help https://codereview.chromium.org/2012313002

See also bug 649054.