It'll most likely be white I have over 30-40 big adult size now midevils. About half are faders. More orange than white though my male was a monster orange Midas. My biggest male 4-5 inches was black and orange as a juvenile and turned all orange! My female white and orange was all white and faded with orange on her. Mother is an all white red red devil.
I have another 50 or so I'm growing out and all look promising! Mother unfortunately died. Father broke the divider all 16 inch make and severely hurt her. I put her in a hospital tank and two days later she was done too much internal bleeding.
Midas will fade from juvenile usually