I am creating a multi plot in R using grid.arrange, and wanted to change my title so that it is bold (and italic if possible).
As this is a general question, I will not include the code for my plots, but the code I am using to make my multi plot is:
grid.arrange(g1, g3, g4+theme(legend.position="none"),mylegend, top="Test title",
layout_matrix=matrix(c(1,1,2,3,4,4), ncol=2, byrow=TRUE),heights=c(1,1.5,0.3))
Are there any additional arguments which can be passed to the top argument to change the font face?