My FB friend Alessandro Segalini asked me to post a screen shot. I originally saved this as a JPEG, then when I saw it in FB – where I posted it as a photo – I realized that the JPEG rendering was doing something funky to the color.
If you know how ClearType works, by manipulating the Red Green and Blue sub-pixel elements, you’ll know that any color manipulation can do weird things.
The text on FB still looks good, but I didn’t want the color weirdness (it’s only slight, but I can see it’s there) to give the wrong impression. So I’ve imported a 24-bit BMP this time. However, a thought just occurs to me: Blogger may scale this BMP to fit into its narrow column. If it does, then you won’t see the real thing here either. But if you click on it, you should see it at full size in a new window.
I’ve posted the BMP on my website, so you can download it and look at it in Windows Paint or some other pixel-level graphics tool in which you can be sure nothing funky’s being done to the original.
I’m going to write a lot more about running Windows on this great Macintosh. The 17″ screen and 133ppi display are terrific.
Dell shipped 133ppi displays about 12 years ago, of course, and has shipped displays as high as 147ppi in laptops ten years ago (Inspiron 7500 or 7800 – I forget which). But the brightness and clarity of the Mac display are something else. I opted for the high-gloss, glass screen rather than the anti-glare one. So my screen looks like a giant iPhone turned on its side…
However, neither Apple nor Microsoft – nor many websites, including Blogger – uses the screen real estate that’s available (1920 x 1200 pixels).
133ppi is definitely a threshold. Once your display is beyond that, then “traditional” websites – those designed under the outdated assumption that all displays are ~96ppi – start to break all over the place.
Windows Vista allows me to set the Font DPI to the actual screen DPI. But when I do it, websites really start going crazy. It’s not the fault of Windows, which is doing the right thing. It’s the fault of the applications and the website creators.
I’ve had to fall back to 120ppi as my Font DPI because of this problem.
This underlying assumption of ~96ppi is at the heart of many issues. The assumption has been invalid for many years now, and the problem will get worse as more and more high-res devices and displays appear.
It really is time to make computing resolution-independent.