Yes I think this is the case, he’s using
#reference “shaders_slang/bezel/MBZ__0__EASYMODE.slangp”
Which is the new naming.
The way things are currently working is that the released version of the shader package (From the link in the start of the HSM Mega Bezel thread ) works with Retroarch V1.9.0. And the Github version, I’ll call this the Mega Bezel Alpha version requires the new features of the not yet released version of Retroarch, which you can get through the nightlies or the version of Retroarch included in my Github repo.