Hi,
Do we know if this functionality is designed to work 'as is' in Custom Theme Settings?
Presumably, the setting is eval'd when the settings page loads or is updated via some AJAX or something so that it knows what to display.
It kind of seems back to front to me. Setting A should toggle Setting B on/off but the way it is set up says the code goes in Setting B (so it toggles itself on/off based on Setting A).
The text description below the Condition field suggests it should work, so it is probably a case of me not using the correct theme setting format, because although there is no error generated, all it seems to actually do is hide itself from view after saving. I can't see it working as the setting shows as NULL unless that's what it checks for. Maybe I should check for not null!