We can change the range of font sizes used in the plot using the scale= option. By default the most frequent words have a scale of 4 and the least have a scale of 0.5. Here we illustrate the effect of increasing the scale range.
set.seed(142) wordcloud(names(freq), freq, min.freq=100, scale=c(5, .1), colors=brewer.pal(6, "Dark2"))
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