::: {.cell hash='08_Maps_cache/revealjs/unnamed-chunk-35_89979c68cf3ec08253895ad3a7e9412d'}

```{.r .cell-code}
ggplot() +
  geom_sf(
    data=filter(africa, 
                pop_year == 2019),   
    mapping=aes(
      fill=as.numeric(pop_est))
  ) +
  scale_fill_viridis_c()
```
:::