> From all I know the author could have made those in Microsoft Paint O_o. It's R package ggplot2. The title isn't center by default and those colors are the c

> From all I know the author could have made those in Microsoft Paint O_o. It's R package ggplot2. The title isn't center by default and those colors are the color ggplot2 tend to use by default. But I do share your concern in term of lack of clarification in where the poster got his data from.