Change the font and color of the name igraph

Question

I create igraph and like to change the color and font size of the chart title.

dput(df) structure(list(Month = structure(c(15248, 15522), class = "Date"), Value = c(1, 3)), .Names = c("Month", "Value"), row.names = 1:2, class = "data.frame") g <- graph.data.frame(df) plot(g, layout = layout.kamada.kawai, vertex.label = V(g)$name, vertex.label.color= "white",edge.arrow.size=0.5, edge.curved=T, edge.label=E(g)$Freq, edge.label.color="pink", edge.label.font=5,vertex.shape="circle",edge.color="white", vertex.color="red", asp=0, main="This is my first igraph") 

Answer 1

Remove the argument main="..." from the plot() function and after plot(...) use the title() function, where cex.main= sets the size and cex.col= sets the color.

 plot(g, layout = layout.kamada.kawai, vertex.label = V(g)$name, vertex.label.color= "white",edge.arrow.size=0.5, edge.curved=T, edge.label=E(g)$Freq, edge.label.color="pink", edge.label.font=5,vertex.shape="circle",edge.color="white", vertex.color="red", asp=0) title("This is my first igraph",cex.main=3,col.main="green")