Thanks a lot for your help.
I misspoke myself.
I would like to modify the "down right corner" symbol of 'Note_Cymbal_Yellow_Sizzle.png' (green surrounded zone) in order to look red "transparent" like the 'Note_Cymbal_Miss_Sizzle.png' symbol (blue surrounded zone).
I try to do this modification by myself (last attachment) but it’s not consistent enough with the other : too opaque and not red enough.
I misspoke myself.
I would like to modify the "down right corner" symbol of 'Note_Cymbal_Yellow_Sizzle.png' (green surrounded zone) in order to look red "transparent" like the 'Note_Cymbal_Miss_Sizzle.png' symbol (blue surrounded zone).
I try to do this modification by myself (last attachment) but it’s not consistent enough with the other : too opaque and not red enough.