@aaronventure I've added the gin stack blur at some point (it's already using this algorithm in the Graphics functions), however it's still ridiculously slow because it has to do graphics operations on a CPU and this is 1970 style hardware usage.
https://forum.juce.com/t/faster-blur-glassmorphism-ui/43086/7
I've went through the thread a few months ago and was close to port it over into HISE (I also sometimes get the urge of making blurry stuff), but I wasn't too convinced that the overhead justifies the performance gain (it's still being calculated on the CPU and this makes it easily a factor 100 slowdown compared to GPU based blur algorithms).
EDIT: this is the module I was talking about:
https://github.com/sudara/melatonin_blur
From revisiting the page, it might be actually worth it trying out how it performs...