I am experiencing an issue with the Splash page theming function.
I've copied a theme and began attempting to edit it but I've run into 2 critical issues.
1: I cannot upload any file, regardless of type. css, html, zip, etc. Attempting to upload any file tells me it's an invalid file type. Despite the documentation clearly stating that I can upload these types of files.
2: I cannot edit a file more than 2 or 3 lines before the "Save" function, ceases to function. If I delete or add 1 or 2 lines of text, it'll save just fine. But if I delete, say, the entire contents of a file and attempt to save. The button does nothing. I cannot edit the file any further.
The fact that I cannot create a folder is frustrating enough but I can't even paste in a new css file over the built in main.css because the "save" button won't work. Presumably the only way I can create meaningful changes to the splash page theme, is 1 or 2 lines at a time, manually.
I've tested this in the latest versions of Chrome & Firefox and the issue persists.
