On a whim I tried some sodium hypochlorite 10% sold at ACE & Walmart as HTH brand liquid chlorine for swimming pools. Dried off shower enclosure, sprayed only a fine mist on affected areas with a spray bottle and allowed to dry- NO SCRUBBING OR WIPING. Eliminated brown and black mold spots from all crevices and corners and every surface including latex painted area above the shower, and even UNDER clear silicone caulking. There was no damage to aluminum, glass or the paint, but flash chromed plastic shower knob bezel got some of what looked like iron oxide speckles that required scrubbing so I would avoid contact with any chrome, and run the bathroom fan and or open the window with bathroom door closed as it is heavy duty chlorine smell, so do it before you leave for the day & do not breath the fumes (I used the hold my breath, spray, exit the room and close the door method). I was getting ready to remove & redo the entire shower door setup because of the mold behind the caulk, this saved me- and it was with one application for the most part, I followed up 2x more later in spots I had missed, I probably used less than 4 ounces in total. Its been over a month and the mold has not (yet) returned. Very impressive if it hasn't taken anything off of my lifespan! Repeated scrubbing and treatment with many other household cleaners did not do the job, and neither did dissolved calcium hypochlorite (granulated pool chlorine)
Tom
Tom