The documented default modifier convention: plain wheel scrolls vertically, Shift scrolls
horizontally (for a game with wide content - ListView's own plain-wheel handling is a
single column and does not need this), Ctrl/Cmd zooms. Exported so a game can override the
convention itself rather than only being able to work around a baked-in one - unlike the
browser's own inconsistent-across-platforms Ctrl+wheel-means-zoom behaviour, which this
does not rely on: the modifier check happens here, not left to the browser to interpret.
The documented default modifier convention: plain wheel scrolls vertically, Shift scrolls horizontally (for a game with wide content -
ListView's own plain-wheel handling is a single column and does not need this), Ctrl/Cmd zooms. Exported so a game can override the convention itself rather than only being able to work around a baked-in one - unlike the browser's own inconsistent-across-platforms Ctrl+wheel-means-zoom behaviour, which this does not rely on: the modifier check happens here, not left to the browser to interpret.