On Sat, Jan 12, 2019 at 08:03:26PM -0500, Scott Kostyshak wrote: > For the example file minted-listings.lyx, if I export it with master to > 2.2.x format, when I compile the exported file with LyX 2.2.x or with > master, I get the following error: > > ! Package keyval Error: bgcolor undefined.
This or similar failures are expected. This is because the listings inset is not modified at all. Its content is interpreted depending on whether the "listings" or "minted" package are desired. However, in the "Program Listings Settings", specific "listings" or "minted" options can be entered in the Advanced tab. Now, in 2.2.x, only the "listings" package can be used for the listings inset. So, any specific "minted" option entered in the Advanced tab may not be a valid "listings" option, and hence the failure. You don't need to export to 2.2.x in order to experiment the same failure. It suffices changing to "listings" the Syntax Highlighting Package. The advanced tab was conceived as a way to enter options not foreseen or added to a later version of the package. I see it as the equivalent of ERT, whose content cannot be changed. So, complete backward compatibility is not guaranteed in this case. -- Enrico
