The mark's box centred on x=73 of the 64-centred tile, so it sat visibly
right. It now centres x=70, between its box and its centroid, as the
Android and iOS icons already do. icon-256.png and the Windows .ico are
rendered again from the SVG.
The icon follows proton-drive-linux's logo: a violet gradient tile with
a darker lower edge, and a white play mark with a soft shadow, cut into
the blocks a revision is fetched in. The SVG, the window PNG and the
Windows .ico are rendered from one source.
On Android it is an adaptive icon with a monochrome layer for themed
icons, and the notification glyph is the same mark. The app is named
"Proton Stream"; the launcher shows "Stream", since "proton-stream" was
cut to "proton-st…".