(bring back) more minimal + calm PDF embedding view

I remeber the time when embedded PDFs were very clean – just a frame, fitting itself perfectly into the content flow.

At some point (possibly around levelling up of PDF/media mode) this changed. The change brought a floating display that I actually consider a step back in terms of the otherwise so powerful embedding option and aesthetics of Capacities.

Now every PFD embedding has a grey surrounding (tolerable, but less minimal than before), but even more irritating in daily/practical use: the content floats, leaving a feeble, restless/agitated and somewhat irritating impression. This is especially true IMO for one-page PDFs which should just sit there, but now are subject to all kinds of vertical and lateral movements and wiggle, which serves no purpose and just makes the scene less calm, less straightforward and leaving a "shaky" page section – with no benefit whatsoever.

Would appreciate if this can be returned to a more solid display (possibly also in connection w/ read-only mode, as this is about calm display and pure reading/browsing…)