default_background_ticks_gridlines_title.R

plot + 
  theme(panel.background = element_blank(),
        axis.ticks = element_blank(),
        panel.grid.minor = element_blank(),
        panel.grid.major.x = element_blank(),
        panel.grid.major.y = element_line(colour = "#757575", size = 0.3),
        # change the title colour, font and alignment
        plot.title = element_text(colour = "#2c7fb8", size = 14, face = "bold", h = 0),
        # change the colour and font of the axis labels
        axis.title = element_text(colour = "#212121", size = 10))