Figma and the Num Lock Quasimode
In short, pressing Shift+2 using one key worked, but pressing Shift+2 using the numeric keypad key didn’t.
Curiously, the bug only happened on Windows, and not on a Mac.
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Pressing Num Lock over and over again to switch between the modes would be slow, infuriating, and flow-reducing…
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The solution: you could hold Shift and press the arrow/numeric key to quickly reverse its current mode.
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The shortcut from MS-DOS was preserved in code through all the versions of Windows, from 1.0 all the way to 10!