opts_knit$set(out.format = "latex")
knit_theme$set("edit-vim")
knit_theme$get()  # names of all available themes
thm = knit_theme$get("acid")  # parse the theme to a list
knit_theme$set(thm)
opts_knit$set(out.format = NULL)  # restore optionRun the code above in your browser using DataLab