Add pref to customize "padding" between edge of iTerm window and start of text
This is NOT about the "border" that one can toggle on and off in the preferences.
Consider the left edge of a terminal window, and let's say that the aforementioned "border" is off. There are about five pixels of dead background space starting at the edge of the terminal window, and ending when the first text cell begins. Similar considerations apply to top and bottom, though the padding appears to be only two pixels there.
This is especially visible if you make your bash prompt have a background color that's different from iTerm's background color.
Terminal.app also has this, but it at least used to have a hidden pref where one could set that "padding" to an arbitrary non-negative number of pixels. And IIRC, it offered separate controls for top/bottom and left/right edges.
I'm hoping that iTerm can gain the ability to set the size of this padding, or at the very least, offer a toggle (hidden or otherwise) to set the padding to zero pixels. (Or at the very, very least, make the left/right padding two pixels to match top and bottom.)
Perhaps "padding" is the wrong word; note that I'm not talking about pixels in between character cells, but just between the edges of the terminal window and the nearest text cell to those edges.
 For instance, let iTerm's background color be white and export