vjust

vertical text alignment relative to the y-coordinate. Possible values: 0 or "bottom" - bottom-aligned (bottom of text at y), 0.5 or "center" (default) - middle of text at y, 1 or "top" - top-aligned (top of text at y). There are two special alignments: "inward" (aligns text towards the plot center) and "outward" (away from the plot center).