Knob for sliding screen door

The lock knob on my elderly Father's sliding glass door's screen door broke and the local door company said that he would need to purchase an entire screen door just to replace the knob. LOL. the joke is on them...I made one!
there are two versions. one solid and one with reduced material.
In addition, I printed it in glow-in-the-dark ABS. I don't know how long it will glow after dark, but I thought I'd try it anyway.