To get a large image you must remove the trailing s, like this:

Open the image in a new tab and change the image url from:

  https://i.sstatic.net/xxxxxs.png

to

  https://i.sstatic.net/xxxxx.png

With white background:

Without background:

SVG Links:

Red Heart
White Heart
Trace
Snake
℞ (Drugs)
H+ (Hospital) He (for Health)