add color setting for add_node_label function

[yiluyucheng]

Hi,

Thanks for developing the enrichplot package, I found it is very useful! When I was using the cnetplot function to plot Gene-Concept Network, I found there are no parameters to set the color of node labels. I wander would you consider adding a new parameter for this? Thanks.

Best, WYC

[GuangchuangYu]

Now you can use geom_cnet_label to adjust details for node labels.

library(ggtangle)
set.seed(123)
x <- list(A = letters[1:10], B=letters[5:12], C=letters[sample(1:26, 15)])

cnetplot(x, node_label = 'category') + geom_cnet_label(node_label = 'item', color='firebrick', size=10)

[GuangchuangYu]

see also https://github.com/YuLab-SMU/enrichplot/issues/266.