The red hat icon on the panel looks like a small icon scaled up.
This happens to drawer icons too. It seems the panel handles icon themes in a quite busted way. It gets a 24x24 (PANEL_DEFAULT_MENU_ICON_SIZE) icon from the icon theme, then registers that with the gtk stock system (in only that size). Then buttons render with: button->pixbuf = gtk_widget_render_icon ( GTK_WIDGET (button), button->stock_id, (GtkIconSize) -1, NULL); which is then scaled to the right size. Since we now have 24x24 icons as well as 48x48 ones we get the 24x24 icons scaled to 48x48 in size 48 panels.
This is reported in a couple other places, might want to find them and dup them here.
*** Bug 106521 has been marked as a duplicate of this bug. ***
I think this is fixed in current panels, please confirm.
Fedora icon looks o.k., but drawer icon and most action icons (see bug 106521) are fuzzy. Tested with a fresh user account on FC test3 updated via Rawhide.
The red hat was a gnome-panel bug fixed in gnome-panel-2.4.0-2 The other icons are problems with the Bluecurve icon theme ... right now it's providing all themed icons at only 24 pixels.
Can be closed CURRENTRELEASE as it is no issue with FC1 anymore.