::I still don't see any illustrations for most of the symbols, however, I've noticed that a few of those that I do see are showing up as dark grey on black, making them very difficult to discern.  Can the colors be redone so that they show up better?  Is it possible that there are other illustrations present that are rendering as even more illegible combinations (e.g., black on black)? 
 ::I note that these odd color schemes are connected with "SVG" graphics.  Perhaps these could be converted to JPG or GIF or some other standard format that renders pretty much the same on any system/browser? 
 :::Some examples for reference:   
 :::*I see no illustrations under the "lines" section, except for the "accolade" entry, where I see the clefs and lines as dark grey on black, but no brace is visible.  (BTW, in 40 years in music at all levels I've never seen or heard a brace refered to as an "accolade" outside of an occasional old 19th-century theory book.) 
 :::*Clefs, nada.   
 :::*Notes, nada.   
 :::*Rests, nothing except for the "multi-measure rest" which shows staff lines (grey on black) but no symbol.   
 :::*Breaks, nada.   
 :::*Common accidentals, nada.   
 :::*Key signitures  yes, these show up as black on a white background, which is the standard I'd recommend for most, if not all of the other symbols.  I note that these illustrations are in PNG format, so that might be another possible good choice for the rest of the symbols. 
 :::*Quartertones  nothing.  Time signitures  only the 6/8 drum example shows up (black on white). 
 :::*Nothing else shows up until the "tremolos" section.   
 :::*Past that, nothing until the "pedal marks" under the piano section, and there only the "con sordino/senza sordino" entries.