Why didn't you used the dark green that's usually used for Chile?
Presumably the same reason he didn't use the tan that's usually used for Colombia, the green for Malaysia, the brown for Spain, the blue for Denmark, the purple for India, and the pink for Oman.
He's made his own color scheme.
The Denmark color is the same as the UCs, but yes, I use my own color scheme, the GCS, however I should add the GCS started off as an addition to the UCS as originally it simply comprised adding additional colors for countries that did not at the time have colors, eventually having a handful of established colors changed either because they were to close (Spain and Russia's colors occasionally got to close, and trying to show Russian Dominions ended-up with a color very similar to the old Spanish color) or in a few cases, like Brazil, because I disliked the existing one; the remaining differences are because people chose to use their own colors rather than the ones I originally created for countries needing them.
Iori, is the German gray supposed to be the same gray used for uncolored countries' claim lines? On that note I think since you've colored Syria you should change the gray around the Golan Heights to the same color. And don't forget to color the one Balearic island that isn't filled w/ EU blue.
I don't know how the claim lines ended-up as the same color as Germany, they were'nt originally, but I've fixed it; the Syrian claim color for 2015 and 2016 was an oversight that now that you've mentioned it I've fixed; that Balearic island has two grey/land pixels, as such one is EU blue and the other the grey/land color.
The below is the updated version, which also includes the changes to Antarctica representing Chile's claim.