in case you can't see the image, the text reads:
FTL Homeworld uses images and data from FTL, but the path to FTL's resources could not be guessed.
You will now be prompted to locate FTL manually. Select '(FTL dir)/resources/data.dat'. Or 'FTL.app', if you're on OSX.
However, I am unable to locate anything like this, as it seems like it doesn't exist in 'steamapps/common/FTL Faster Than Light/'. There's only 'ftl.dat'. Also, there is no /resources folder in 'Documents/My Games/FasterThanLight', and these were the only places I could think they may store the resources. Any ideas?