ist_css())
```

```
##  [1] "chocolate-fonts"  "chocolate"        "default-fonts"   
##  [4] "default"          "duke-blue"        "hygge-duke"      
##  [7] "hygge"            "kunoichi"         "lucy-fonts"      
## [10] "lucy"             "metropolis-fonts" "metropolis"      
## [13] "middlebury-fonts" "middlebury"       "ninjutsu"        
## [16] "rladies-fonts"    "rladies"          "robot-fonts"     
## [19] "robot"            "rutgers-fonts"    "rutgers"         
## [22] "shinobi"          "tamu-font