anchor: love.window.getMode
  Gets the display mode and properties of the window.
  width, height, flags = love.window.getMode()
  width number Window width.
  height number Window height.
  flags table Table with the window properties:
  flags.fullscreen boolean Fullscreen (true), or windowed (false).
  flags.fullscreentype FullscreenType The type of fullscreen mode used.
  flags.vsync boolean True if the graphics framerate is synchronized with the monitor's refresh rate, false otherwise.
  flags.msaa number The number of antialiasing samples used (0 if MSAA is disabled).
  flags.resizable boolean True if the window is resizable in windowed mode, false otherwise.
  flags.borderless boolean True if the window is borderless in windowed mode, false otherwise.
  flags.centered boolean True if the window is centered in windowed mode, false otherwise.
  flags.display number The index of the display the window is currently in, if multiple monitors are available.
  flags.minwidth number The minimum width of the window, if it's resizable.
  flags.minheight number The minimum height of the window, if it's resizable.
  flags.highdpi boolean True if high-dpi mode is allowed on Retina displays in OS X. Does nothing on non-Retina displays.
  flags.refreshrate number The refresh rate of the screen's current display mode, in Hz. May be 0 if the value can't be determined.
  flags.x number The x-coordinate of the window's position in its current display.
  flags.y number The y-coordinate of the window's position in its current display.
  flags.srgb boolean Removed in 0.10.0 (use love.graphics.isGammaCorrect instead). True if sRGB gamma correction is applied when drawing to the screen.