I am using plot_bar function in R to illustrate some data from a phyloseq class. I want to add some different colors to my plot, here the pallette Paired from the RColorBrewer package. For some reasons the bars end up still having the default color around them. Here you can see how it looks like: https://i.stack.imgur.com/dBNYr.jpg Any way I could get rid of them?
phylum.both.b <- plot_bar(both.b, fill="phylum") +
geom_bar(aes(color=phylum, fill=phylum), stat="identity") +
scale_y_continuous(expand=c(0,0)) +
labs(x="", y="Relative abundance") +
scale_fill_brewer(palette="Paired") +
theme(axis.text.x=element_blank()) +
facet_wrap(~Type, scale="free_x", ncol=4) +
facet_row(vars(Type), scales = 'free', space = 'free')
ggsave("PhylumBothBact.png", phylum.both.b, height=15, width=40, unit="cm")