Function to combine hc_theme objects.
Examples
thm <- hc_theme_merge(
hc_theme_darkunica(),
hc_theme(
chart = list(
backgroundColor = "transparent",
divBackgroundImage = "http://cdn.wall-pix.net/albums/art-3Dview/00025095.jpg"
),
title = list(
style = list(
color = "white",
fontFamily = "Erica One"
)
)
)
)