I use OSX and prefer a dark BG and light text in my terminal. A problem is that the mouse pointer is almost invisible. Its the I shaped pointer, its black with an extremely faint white glow. I often can't see where the pointer is.
If the terminal does not have focus and I'm hovering the mouse pointer over the terminal window I can see it fine. But once the terminal has focus the pointer practically disappears.
Please note, I'm asking about the mouse pointer not the terminal keyboard cursor, which is easily customisable.
Holding down the alt or option key on Mac OSX changes the cursor to a black cross that has a white border which makes it far easier to spot than the default text bar.