There is a fair bit here, a complete 6 voice synth with custom sliders, labels and backgrounds plus my graphic adsr control.
Sadly it hasn't worked that well.
Firstly graphics badly interfere with the audio on some systems
Secondly the sliders stick at 0 or 127 sometimes.
I've elected to use a limited preset system because I wanted to easily change sounds
It will by default name the voice 'untitled' when you save unless you enter a name in the symbol box
It is also saving the whole program each time you save (probably a bad idea) because the presets are save to messages
On the plus side, it looks and sounds Ok
the patch to run is new-widget-synth.pd
see what you think