What I am extremly missing in Gnome 3

Hi Everybody,
about one year ago I was full of hope, that the settings-dialogs for 
font-size, window-decoration and color and, very important, mouse-theme 
and size, would be implemented soon and would be as convenient (or even 
better) as in Gnome 2. But unfortunally, nothing happened. The only 
solution for me as a partially sigthed man was to switch to XFCE. And 
although I could solve the mouse pointer size problem here, it is far 
away fron the easy to use settings dialog of Gnome 2. I suspect, the 
developoers had blind people in mind, but not the visually impaired. So 
whre can I help, is there a responsible developer who maybe is waiting 
for a tester like me since 2010 :-) ?
So, here I am, and as a non-developer I really would like to help making 
the next release more accissible for people like me and all the others 
living with visual impairment without the need just to zoom in 
everything, but with the need to fine adjust constrast and sizes of text 
and other elements.
Thanks in advance
Detlef