sorry to say I don't know about that frameless design, but from the looks of it it's just two different pieces of glass. A dark tinted outer and a mottled opaque inner.
I wouldn't be afraid to pull off that inside frame to explore.
I'll bet you'll find something very similar to what I had.
Mine is the old framed glass in the door, but I changed it out. Just a bunch of screws through the plastic inner frame that tightened against the outer frame, sandwiching the glass and door structure.
I pulled it off in a CG while on a trip to see what's what, being careful to not drop the glass out. Took some measurements...length x width x thickness.
Then after I saw the prices for the kits, I called my local glass company and ordered a piece of tinted tempered glass and ordered some butyl tape.
I found the glass not dark enough for my liking so I used some film I had left over from a job on my home years earlier to make it darker.
Now I can see out, and it's very helpful in my 31L to be able to see out while driving too. The glass is too dark to see in during the day, but for night I installed a simple roll shade form Ikea above the door.
I'm very pleased with the result!
Just be careful to not over tighten the screws if your frame is plastic like mine, I found the female threads in the plastic frame to be not up to the challenge of my red-neck torque wrench.... but I was able to fix my mistake easily enough
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