require(RColorBrewer)
require(ggplot2)
RColorBrewer::brewer.pal(9, "Greys") -> grey_pal
theme(rect = element_rect(fill=grey_pal[2]), panel.grid.minor = element_blank(),
panel.background=element_rect(fill = grey_pal[2]),
panel.grid.major = element_line(color = grey_pal[3]), text = element_text(family = "mono"),
axis.ticks = element_blank(),
axis.text = element_text(size=14, color=grey_pal[8]),
axis.title = element_text(size=16, face="bold")) -> thm
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