Created attachment 390725 [details]
In Firefox trunk on WinXP (Safari also), the text content rendered using -moz-transform looks ugly than same content screen captured as PNG then rotated using CSS transform.
Which in turn still not good as rotated text in MS-Visio or other similar tools.
I also tried it with
text-rendering: geometricPrecision ;
text-rendering: optimizeLegibility ;
still no improvement.
So we need a mechanism to improve quality of text content rotated using CSS transform. May be a new -moz CSS property and/or value.
Created attachment 390736 [details]
This issue and Bug 506549 (Jiggling on mouse selection) is only a major problem in windows. On Linux it looks fine.
Created attachment 390737 [details]
Created attachment 390738 [details]
Created attachment 440815 [details]
Screenshot when D3D is enabled
When enable D3D the result is much better but still not sharp.
To enable D3D (on Windows Vista/7) set prefs:
gfx.font_rendering.directwrite.enabled = true
mozilla.widget.render-mode = 6