This massive image modification removes colour profile information and adds an alpha channel. The first saves a little space, the second costs a little space. First is needed since SDL on OSX applies colour profile info which, while cool, is useless so long as the other theme colours are un-adjusted. Second is since we are apparently requiring full 32 bit surfaces now.

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install(FILES

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    Border.png

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    Flake.png

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    Girder.png

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    horizont.png

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    icon.png

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    LandTex.png

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    plant1.png

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    plant2.png

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    plant3.png

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    plant4.png

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    Sky.png

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    theme.cfg

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    horizont-lowres.png

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    Sky-lowres.png

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    DESTINATION ${SHAREPATH}Data/Themes/nature)