Safari assumes all untagged documents are in display RGB. The 20 squares look OK to me, all separate in Safari. I’m not sure that means it renders properly or not.
Hmmm....
It's not doing that on either my MacBook Pro or my Mac Pro (Safari 5.0.2). I created a Granger Chart and then saved two versions... one untagged, and one tagged in sRGB. I opened each up in a tab in Safari and toggled back and forth. There's an unmistakable difference between the two. In theory if it's assumed that the profile is sRGB in the absence of an embedded profile, then the two should look the same but that's definitely not the case. If you go into about:config in Firefox and set gfx.color_management.mode to 1 it will assume that untagged images have an sRGB profile. If you set it to 2 it will only color manage images that are tagged with a profile. I tested this and it works as expected (the granger charts appear identical in mode 1 and different in mode 2).
As for Safari if I look at
http://www.lagom.nl/lcd-test/black.php for the 1, 2, and 3 black patches (using the Digital Color Meter only because the numbers I'm seeing correlate with the color casts I'm seeing in Safari) I get.... 0,11,0; 8,8,8, 0,13,8. For Firefox I get 6,6,6; 8,8,8; 10,10,10... all neutral.
At least I know I'm not the only one:
http://discussions.apple.com/thread.jspa?threadID=2453291&tstart=405The reference I made to the bug was that it appears as if Safari is doing something yet again (applying the monitor profile perhaps... that wouldn't make sense though because I'm viewing it on my 2nd display which is an NEC2690, the Video LUT is a straight line, no corrections... the corrections are all in the Monitor LUT). Anyhow... I have absolutely no clue what's going on there. On both my primary and secondary screen, there's tons of green color cast on the blocks in the link above that do not appear in Firefox or Photoshop.
Cheers, Joe