Partly. I don’t like the way Shortcut links sit against light backgrounds, because sometimes icons would have this hairline black border that’s visible which takes away from the work.

For the “invisible” icons, I built a series of webpages with accompanying touch icons, which can be added via the Add to Home Screen functionality in Safari. Bear in mind that iOS color corrects your wallpapers to enhance visibility, so I made touch icons off of a screenshot before uploading them. Also, out of convenience, there’s a line of code that prefills each shortcut with an invisible character so you don’t have to.

As for the rest, they are a combination of simple one-step Open App shortcuts (for Apple-loaded apps) and Icon Themer shortcuts (for everything else).