2016-02-24, 23:35
OK, if I'm understanding the logs correctly, its because the some of the default properties - which we build a .properties file from if it doesn't exist before applying the new properties - has some empty values. From a quick look at your skin, I'd say its probably the icons. I've added some code which won't copy any empty properties and - fingers crossed - it should now work as expected. (Indeed, it should work well enough I can revert a little bit of code!)