P: Make All Adjustments Local

Only if there is a fix for the poor performance when using the adjstment brush.

Although I'd even like to be able to apply camera calibration profiles locally, and lens corrections, and even color noise reduction, I realize some things may require bigger design changes and trade-offs than others. I'm OK with *some* things being global if "necessary", so:

Priorities:
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1. Lum. Noise Reduction *and* Sharpening Parameters (not just amount) (I now see these as parts of the same whole).
2. Color Adjustment (e.g. HSL, WB)
3. Tone Curve

I agree that all adjustments should be localisable. A performance penalty should only occur for those using computing intensive adjustments.

If it has to be a subset of controls, creative sharpening and HSL control are ones that should be high up the list (The latter has been suggested as an idea already).

The implementation details might (or might not) result in a performance penalty for additional local adjustments, therefore I'd prefer to prioritize mine. I think the team is well aware that having everything localizable is a desirable thing, but if (!) there is a penalty, I'd prefer WB and NR to be top of the list. Creative sharpening is, I feel, important as well, but it might be a separate item (or not) from the local adjustments.