Add feathers color schemes #123

Job	Run time
Documentation	1m 31s
Julia 1.3 - ubuntu-latest - x64	1m 57s
Julia 1.3 - ubuntu-latest - x86	2m 20s
Julia 1.3 - macos-latest - x64	2m 47s
Julia 1.3 - windows-latest - x64	8m 44s
Julia 1.3 - windows-latest - x86	13m 54s
Julia 1 - ubuntu-latest - x64	1m 3s
Julia 1 - ubuntu-latest - x86	1m 9s
Julia 1 - macos-latest - x64	1m 6s
Julia 1 - windows-latest - x64	1m 5s
Julia 1 - windows-latest - x86	1m 19s
Julia nightly - ubuntu-latest - x64	1m 9s
Julia nightly - ubuntu-latest - x86	1m 16s
Julia nightly - macos-latest - x64	1m 24s
Julia nightly - windows-latest - x64	1m 26s
Julia nightly - windows-latest - x86	1m 15s
	43m 25s

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