Is there a way to change the default LÖVE2D icon to another one?
I merge my game.love file and the love.exe with the cmd (copy /b love.exe+app.love game.exe). But after this the executable has the default LÖVE2D icon.
I don't know much about Love so I don't know if there is a built-in way, but you can change the icon of an executable file using a variety of icon editing software. Last time I did this in days of yore my weapon of choice was IconForge but I'm sure there are other tools available now (like these).