When the browser is loading images, sometimes the unloaded parts of the images are either black or contain mostly black garbage. This usually occurs when the page is hidden behind another window while loading, then brought to front again before all the images on the page have been loaded. This effect is worst when the browser fails to completely load an image causing the unsightly unloaded parts to stay permanently. (I would not classify not being able to load an image properly as a bug - after-all, networks aren't always reliable, but see bug #35130.) So again, a transparent background for unloaded portions of images would be ideal. A coloured background matching the background colour of the page or the background colour of the element in which the image is contained is less than ideal but preferable to garbage or black.
Don, I thought this problem was fixed? Is the fix in PR1?
Testing with 2000-04-06-10-M15 and 2000-04-07-09-M15 on WinNT viewing a variety of graphics-rich sites while doing a download at the same time to keep loading slow, I saw no problem with unloaded parts of images containing black or garbage. firstname.lastname@example.org, please consider using the Bugzilla helper at http://www.mozilla.org/quality/help/bug-form.html to file bug reports, and in any case follow the Bug Writing Guidelines at http://www.mozilla.org/quality/bug-writing-guidelines.html -- in particular, because bugs get fixed every day, it is necessary to report the Build ID (the number resembling 2000040709 at the bottom right of the browser window) if you do not use the Bugzilla Helper. Marking as a DUP of bug 1248, "[Perf]Bottommost portion of images filled w/garbage during rendering", FIXED. *** This bug has been marked as a duplicate of 1248 ***
Rubber-stamping as verified duplicate, pending email@example.com providing information to the contrary on a current build. Thanks, Sean!