fix pick color with middle mouse no longer workin
fix pick color with middle mouse no longer workin

zoeesilcock/piskel,smiegrin/piskel,zoeesilcock/piskel,juliandescottes/piskel,piskelapp/piskel,smiegrin/piskel,piskelapp/piskel,GMartigny/piskel,smiegrin/piskel,juliandescottes/piskel,GMartigny/piskel,GMartigny/piskel,piskelapp/piskel,zoeesilcock/piskel,juliandescottes/piskel