Playing with the fiolling of the middle cell to mean a double click is a bad idea, it would be better to add one or two rounded borders separated from the button, or simply display two icons in sequence for a double click).
Note that the glyphs do not necessarily have to show a mouse, it could as well be a square with its lower third part split into two or three squares, like a touchpad (see the notification icons displayed by Synaptics touchpad drivers). The same rounded borders could also mean the number of clicks. As well, if a ouse is represented, it may or may not have a wire. Emoji-styles could use more realistic 3D-like rendering with extra shadows... Le mar. 31 déc. 2019 à 22:16, wjgo_10...@btinternet.com via Unicode < unicode@unicode.org> a écrit : > How about the following. > > A filled upper cell to mean click, > > a filled upper cell and a filled middle cell to mean double click, > Note that clicking and maintaining the button is just like the convention of using "+" after a key modifier before the actual key (both key may be styled separately to decorate their glyphs into a keycap, but such styling should not be applied in the distinctive glyph; there may also be emoji sequences to combine an anonymous keycap base emoji with the following characters, using joiner controls, but this is more difficult for keys whose labels are texts made of multiple letters like "End" or words like "Print Screen", after a possible Unicode symbol for keys like Page Up, Home, End, NumLock; styling the text offers better option and accessibility even if symbols are used and a whole translatable string is surrounded by deocrating styles to create a visual keycap).
