I'm trying to modify the legend to a map by removing the borders around particular cells within the legend.
A simplified version of my code looks like this:
ggplot() +
stat_density2d(data = carto@data,
aes(x=field_2,y=field_1),
geom="polygon",
alpha = .37,
fill = "#e29206") +
geom_point(data = Schools@data[Schools@data$sch_type == "Charter" | Schools@data$sch_type == "District", ],
aes(x = x, y = y, color = sch_type, shape = grade_cat),
size = 1) +
scale_colour_manual(values=c("#e0100d", "#4753ff")) +
guides(color=guide_legend(override.aes=list(fill = "white"))) +
theme(legend.key = element_blank()) +
coord_map()
which produces the following image:
I would like to remove the blue and red borders on the top two legend cells. If I add color to the override.aes() arguments within guides() it changes the borders, but also makes the charter and district colors the same. Is there a different argument I could use in the place of color?
I looked at these two questions (among various sources) before posting:
