pop_color

sets the position of most elements

this function must only be called under end_window

gui.push_color(gui_color.text, color.new(255, 0, 0, 255)) -- red text
gui.push_color(gui_color.window_bg, color.new(120, 120, 120, 255)) -- grey window bg

gui.push_color(2) -- we pushed color twice, put 2

argument types: (int push_amount)