The glow effect
geom_glow_point() / geom_glow_line() / geom_glow_smooth() / geom_glow_boxplot()
Every glow geom stacks several layers of increasing size and decreasing opacity behind a solid core — no image assets, just layered alpha. Tunable via n_layers, glow_width, and alpha.
ggplot(diamonds_sub, aes(carat, price, colour = clarity)) +
geom_glow_point() +
scale_colour_demonhunters_d(name = "gwi_ma") +
theme_demonhunters_dark()