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I'm having a really hard time reading questions because some letters seem to have blue or red... tendencies.


  • tttttttttttt
  • ffffffffffff
  • oooooooooooo

They are really hurting my eyes. After 2-3 hours of reading questions, I see Ts and Fs and Os everywhere.

Is this an operating system bug or what? It is just me? It's the same in all browsers, at my office and at my home. I'm using Windows 7.


I do believe it's because of the font, which is bolder for those letters:

bold letters t, f and o

share|improve this question
Nope, don't see that. Could be your screens too.. – Martijn Pieters Aug 20 '12 at 10:53
Maybe a screeshot? Edit: Yup, it's defiantly your monitors, I don't see anything wrong with the screenshot your provided – Adnan Aug 20 '12 at 10:55
Which browser are you using? – ChrisF Aug 20 '12 at 10:58
Update screenshot, it was black/white. Same thing Firefox, IE9, Chrome ... – Mihai Iorga Aug 20 '12 at 10:59
Again, nothing. Sorry. – Adnan Aug 20 '12 at 11:00
With regards to the screenshot, the colours are there. Take it into photoshop, zoom in and voila: – Bart Aug 20 '12 at 11:25
It's Cleartype, it uses colors at the edges to smoothen fonts. – Ben Brocka Aug 20 '12 at 14:22
Nice work, @Bart. – Pops Aug 20 '12 at 17:12
I see it in the text of the post :/ – Drise Sep 12 '12 at 15:26
I <3 the new AMURRICA theme. – user7116 Sep 12 '12 at 15:42
up vote 10 down vote accepted

It seems you are using some kind of subpixel rendering which can cause blue and red fringing around the letter edges. The Windows version of that technique is called ClearType, try changing the settings for that or disable it entirely.

This is how the letters look for me (the o does not have any visible color fringing for me):

enter image description here

share|improve this answer
that is it, I've disabled it but now the text is too crowded or too bold. I still see colors in your screenshot. – Mihai Iorga Aug 20 '12 at 11:09
@MihaiIorga, but how can you still see colors in his screen shot? You're rendering an image not a text anymore, I can't see the colors. That's strange. – Adnan Aug 20 '12 at 11:19
I see colors. From my iPhone I don't, but from my work & hope PC I see them. – Mihai Iorga Aug 20 '12 at 11:20
@dnan He can see the colours because they are there. Taking that image into Photoshop and zooming in reveals the following: So the colours are definitely there I would say. – Bart Aug 20 '12 at 11:22
So it hurts my eyes :) – Mihai Iorga Aug 20 '12 at 11:26
@MihaiIorga The answer still remains valid though. This is a cleartype issue. – Bart Aug 20 '12 at 11:30
Alright, thanks for clearing it Bart, that's great. But how can he see the colors in the image while I can't? Our browser/OS might be handling/rendering text differently, but I find it strange to happen also to images too. – Adnan Aug 20 '12 at 11:31
@dnan That can have a variety of causes ranging from display quality to color profile calibration to the way your browser renders your jpegs and what not. For example, on my Android phone, the color shift is not nearly as apparent as on my calibrated monitor. And even there I seem to see a small different between Chrome and Internet Explorer. (Though I might have just gone loopy by staring at it for too long) – Bart Aug 20 '12 at 11:40
@Bart, excellent. Thanks Bart :D – Adnan Aug 20 '12 at 12:14
It's all explained pretty well here. – Shadow Wizard Aug 20 '12 at 12:21
@MihaiIorga: goog "cleartype tuning" + your OS version. – Won't Aug 20 '12 at 15:13
thank you, i hope I will get it right :) – Mihai Iorga Aug 20 '12 at 17:32
I can see them too O_O – Alenanno Sep 12 '12 at 15:35

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