Grayed Out Controls

I have a few filters which use switches to get different looks. Some switches make it so that some of the filter controls are non-applicable. I would think it neat to see un-usable filter controls become grayed out if certain switches yield them non applicable at times.

I.E. I have a checkbox that toggles between an image, and a tri-tone of the image. The three colors for the tri-tone and the corresponding thresholds have very little (absolutley no) effect when the checkbox is checked for the image; however, the color and the three different threshold sliders seem confusing to the user when they have no effect.

So the problem is some users try sliding the threshold slider and it doesn't do anything, then they switch to a tri-tone image and don't move the sliders because they have already seen the sliders don't do anything (So they think). Therefore it would be user friendly to gray out non-applicable controls.

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suggested this a LONG while ago

I have re-suggested old suggestions about 100 times, despite searching the archives. Well Kraellin, I have to give you a +2 on your idea.