2.20.0 - en to unknown language translation catalogue (3 entries)

en:   -center                Open the window in the center of the screen
target:   -center                Open the window in the centre of the screen

en:   -fg COLOR              Set message font color
target:   -fg COLOR              Set message font colour

en:   -bg COLOR              Set message background color
target:   -bg COLOR              Set message background colour
