rtsplot.theme.set(legend.bg.col=grDevices::adjustcolor('orange', 200/255))
plot(rnorm(20), rnorm(20))
rtsplot.corner.label('test1', y=-1, space='figure')
rtsplot.corner.label('test2', y=1, space='figure')
rtsplot.corner.label('test3', x=1, space='figure')
rtsplot.corner.label('test4', x=1, y=-1, space='figure')
rtsplot.theme.set(legend.bg.col=grDevices::adjustcolor('white', 50/255))
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