On many real lighting consoles, there is an option to create "dimmer curves". What this does, is it allows you to create a curve on which the intensity will be changed. This is useful because many LED lights do not dim very well, sometimes they're already 70% bright at 20% intensity channel value.
This would allow you to match dimming of LED fixtures to dimming of regular dimmers better, and make the sliders work more linearly.
I saw that, but the main purpose of that was about preheat, so I thought there ought to be a dedicated thread just for this.