How to set a standard label size in ggplot's geom_label? 4 I use geom_label to plot text. By default, the width of the label (box) depends on the width of the text. However, I want to have a uniform label size. That is, I want a fixed size of the rectangle behind the text, irrespective of the length of the string. Example of my current labels, with different size depending on string length: