Github user stain commented on the issue: https://github.com/apache/incubator-taverna-common-activities/pull/20 @ThilinaManamgoda if the https://github.com/common-workflow-language/common-workflow-language/blob/master/site/CWL-Logo-Header.png logo is truly still under LGPL and CC-BY-SA-3.0 (which I think @mr-c would need to clarify), then we can't redistribute your shrunk PNG version, as it then [needs to be unmodified](http://apache.org/legal/resolved.html#cc-sa). Of course you would be free to contribute the modified shrunk version back to https://github.com/common-workflow-language/logo and then we use that binary "unmodified". But still being under CC-BY-SA 3.0 it means you would need to modify this top-level `LICENSE` and `README`, e.g. as in https://github.com/apache/incubator-taverna-language/blob/master/LICENSE#L271
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