Depending on the reason it is different, if it is the result of some unintended issue with a Retroarch update, then updating the shader is not the “best” solution.
Even if it was intended, making some small change in the shader parameters to get what you may consider “corect” color is far less arduous that HSM needing to track down the issue and update the shader.
The Mega Bezel is a complex beast, and I am positive that if he were to make the attempt, an update would wait for more changes to accumulate.
thank you very much, 





