REQ: Voxengo Peakbuster v1.7

Peakbuster is a transient (attack-phase) boosting, resonance smoothing, and harmonic enhancement AudioUnit, AAX, and VST plugin for professional music and sound production applications. Peakbuster is a multi-band transient enhancer effect plugin that uses an advanced automatic algorithm. Peakbuster stands from the competition in its ability to always sound natural, even on a full-spectrum master bus. The strength of the effect depends on the material being processed: the algorithm masterfully analyses dynamics of the sound it processes, and applies boosting or cutting in quantities that are “exactly right”. Moreover, the algorithm has a suitably “fast” reaction time making its adjustments sound “fluid”, and not “all over the place”.

v1.7 :
* Improved audio-UI interoperability, to reduce a chance of audio stutter happening when UI is active.
* Improved "M3" mode's performance - this change is backwards-compatible.
* Changed "FX1" mode's gain for better operation. This change is not backwards-compatible.
* Added the "M3+" mode, which is a more intense variant of the "M3" mode.
* Increased "R" mode's gain when listening to "M3" and "M3+" modes.
* Further fix to HiDPI VST3 GUI resizing issue in Cubase, on Windows.
* Fixed occasional GUI flickering on macOS (due to usage of Device RGB color-space, now it is sRGB).