Added 4 pcs of matting using polyester resin to back side and light no longer shined through from front crack.
Then broke off thumsized Pc of gelcoat off front crack and sanded down to T shape to clean up. Now it shines through again.
Plan to add a little poly fiberglass using increasing sizes of matting and the add Evercoat 27 filling to original shape.
Then sand clean prime and paint.
Not sure where to get color matched paint from the gel coat chip that I have.
Any suggestions on color matching paint or filing appreciated.