I am having a problem with Text Display settings not "sticking" when set from within the module.
I am in a module and use the font settings icon at the top (aA) to open a dialog and select "All Display Settings" and then change a setting (Text color and/or Background color). The colors change as expected. I then open the same dialog and put it into "Night Mode." That also works as expected. Finally, I take it out of "Night Mode" and it reverts back to the Text Display settings I had at the beginning, not what I had just before going into Night Mode.
If, however, I change the Text Display settings from the settings dialog (Books icon -> Settings -> Text Display), then Accordance preserves those settings even after I go into and come out of Night Mode.
Also, if I change a text setting (in my example, text color changed to Orange) using the in-module dialog, leave the app, then come back after having used another app, I have lost the new setting (The text is no longer orange).
I am doing all this from the NIV 1984 w/ G/K module. iOS version 1.6.6.