Logaritmic color scale for world map

[Kilian]

The world map colors countries darker blue depending on the number of visitors but seems to do so on a linear scale. While there are 3 countries significantly presented in the data (at 34%, 15% and 13% respectively) it's essentially impossible to distinguish the second and third countries as originating more visitors:

The map would be more useful if the coloring did a better job of highlighting the differences, which can be accomplished in two ways:

• A logaritmic scale where the difference between larger percentages have a disproportionally higher color contrast (e.g. the difference between 1 and 2 percent is nearly nothing, while the difference between 30% and 31% is much more significant)
• A linear scale that doesn't go from [0,100%] but [0, highest-single-country-%].

Both would do a good job of improving the chart, but the logaritmic scale would provide better insight into differences rather than absolute percentages.