support for ggblend (multiply, lighten, darken, etc.)

[markjrieke]

blending operations in ggblend don't appear to be supported by the ragg graphics device. Other devices (e.g., cairo png) work as expected, but using ragg crashes RStudio. Not sure if this is addressable through the ragg package or if it's something more primitive to the OS (macOS in my case).

[thomasp85]

This should be fixed in the latest version - can you please test with that

[markjrieke]

yes --- works as expected, thank you!!