>>956814>My_File.pngWhy force yourself through placing underscores with shift when space is literally the easiest key to hit? Unless you do very specific stuff or are into retro OSes - there's just no reason. The fricking "Program Files" folder has a space in it specifically to force every modern Windows application into being able to handle spaces.
>My File.pngEntirely sensible
>MY_FILE.PNGAbsolutely haram. Your milage may vary but for some reason I have a deep aesthetic distased for uppercase file extensions.
>myfile.pngOkay but less legible imo.
Why not
>mY*FiLe.PngBottom line: Use whatever the fuck you want unless you have a specific technical limitation in mind. And keep in mind that on Windows every filename regardless of how complex can still be referenced with an 8.3 filename (see: dir /x) because MS has insane compatibility to 30 years outdated standards like that.