I save the brush material as an asset and save the brush changes on brush tool>asset and use the 
for the texture and the material
when I open the blender the first time the brush work fine but when I open a new file the material does not add to the brushes
grease pencil brush material does not show after opening a new file a second time from the file menu and the “splash screen” option https://youtu.be/jqdKFyprBdY