@juanir27-- Could you please provide us the sample url in which you are facing the rendering issue , as the url provided by you.. doesn't seem to have the url to reproduce the issue.Also help us by providing the expected and actual result screeshot for better understanding.

Thanks!

Hi hdodda! As I faced the issue in a local environment I can't provide the URL, but please check the attached file with the actual result (chrome 59) vs the expected result (firefox dev edition 55).

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Thanks for response ..

@juanir27-- Try providing us a sample testcase/ jsfiddle , where we can reproduce the issue , that would help us in triaging the issue.

Thanks!

Sure: https://jsfiddle.net/bb2rrw3n/9/

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Tested in chrome # 59.0.3071.115 on win 10.0 and not able to reproduce the issue.Please find the screen shots for your reference.

@Reporter: Could you please let me know if i have missed anything and if possible,Please create new profile without extensions and apps.Re-check once and let us know the observations of the issue which would help us to triage the issue further.

Thanks in Advance.

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Hello, we got the same problem as you can see on the screenshot provided. It seems that the aliasing problem occurs under 21 pixels.

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(Tested in chrome # 59.0.3071.115 on win 10.0)

@rbasuvula I see exactly the same as above. Probably you don't see it because of the pixel density in your monitor. I am using a 22" Dell Monitor.

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I am using a 22" LG

As per comment #12 & 14
Tested in chrome stable #59.0.3071.115 and canary #61.0.3149.0 on Win 10.0 able to reproduce the issue.
Below are the Bisect Details:

Bisect Info:
=============
Good Build: 59.0.3053.0 (Revision - 459685)
Bad Build: 59.0.3054.0 (Revision - 459950)

Bisect URL:
=========== 
You are probably looking for a change made after 459770 (known good), but no later than 459771 (first known bad).
CHANGELOG URL:
https://chromium.googlesource.com/chromium/src/+log/dd547f46cfb46ea92f554aa842d06bde19ceef6e..5fd631a31c688954834fc1e297a67b4b1a4f08bc

From the CL above, assigning the issue to the concern owner

@drott: Could you please look into the issue, pardon me if it has nothing to do with your changes and if possible please assign it to concern owner.

Reviewed-on: https://chromium-review.googlesource.com/458377

Note : Unable to reproduce the issue on Ubuntu 14.04 and Mac 10.12.5.

The screenshots look like in the "before" case the material design icon font was rendered with ClearType symmetric smoothing, where as after it is higher vertical contrast but leads to tops and bottoms of circles appearing as jagged. 

The Material design icon fonts in the iconfont/ folder from the material design GitHub repository have a GASP table that is only configured with a value of 0x2 for GASP table version 0. In our implementation, this leads to disabling symmetric smoothing for this font. 

The material design icon font should be fixed to have an up to date GASP table to restore symmetric smoothing rendering. 

<?xml version="1.0" encoding="UTF-8"?>
<ttFont sfntVersion="\x00\x01\x00\x00" ttLibVersion="3.18">

  <gasp>
    <gaspRange rangeMaxPPEM="65535" rangeGaspBehavior="2"/>
  </gasp>

</ttFont>


Also, we can consider hardcoding the rendering mode for this font on Windows.

Filed as an issue on the Material Design icon font https://github.com/google/material-design-icons/issues/855