Preferences > Memory Usage
Adjustments > Brightness/Contrast
Filters
Blur (note the rendering of the thumb arrow)
Layer Blending
Layer Style
Threshold
Color Balance
Things to keep in mind:
- These can be found in just Photoshop; I can’t imagine what I’d find elsewhere in the suite. Actually, fine, here’s the first one I found in Illustrator CS5:
- The most common out of all these seems to be second one, Brightness Adjustment.
- They’re all ugly. The only near-acceptable one is the Layer Style slider.
- None of these looks like the standard OS X slider:
UPDATE: Some clarification here.