tidied up valid mask
tidied up valid mask

xtheunknown0/drwn,xtheunknown0/drwn,xtheunknown0/drwn,printedheart/drwn,xtheunknown0/drwn,printedheart/drwn,printedheart/drwn,printedheart/drwn,xtheunknown0/drwn,xtheunknown0/drwn,printedheart/drwn,printedheart/drwn