If she still has dark mode and could be jailbroken, I noticed when I go to the Snapchat app in Filza I found a file that mentions dark mode. To get to it, click the star (on the bottom bar of Filza), then Apps Manager, then find the Snapchat folder. From there under “Library”, then “Preferences”, click on “com.toyopagroup.picaboo.plist”, then expand “Root” (just click on it), then after expand... - Source: Reddit / 2 months ago
I use it on my iPhone, with the foobar2000 app as my player. I use foobar2000 on my desktop to transcode my lossless files to Opus, VBR at ~85 kbps. They actually come out to anywhere from about 70 to 115 kbps, and are universally transparent for me. I transfer the files to the phone's foobar2000 data folder using iExplorer, which for this purpose works fine in demo mode. - Source: Reddit / about 2 months ago
Maybe this post can help: link. You could try using iExplorer to access the file system which might require doing a backup but it might just be quicker to jailbreak though and use filza. - Source: Reddit / 25 days ago
iMazing - iMazing lets you transfer music, files, messages, apps and more from any iPhone, iPad, or iPod to a computer, Mac or PC. Manage and backup your iOS device simply without iTunes. (was DiskAid)
i-FunBox - Founded in 2015, Appholly Technology Co., Ltd. has experienced capability to develop product, manage, market and publish apps and games as well.
CopyTrans - CopyTrans is a tool for managing the files on your iPhone or iPad through your computer's interface.
PhoneView - With PhoneView, you can view, save and print all of your iPhone and iPad messages, WhatsApp messages, voicemail and other data directly on your Mac. Save your SMS, iMessages and WhatsApp messages.
Touch Copy - TouchCopy - Copy Music, Messages, Photos, Notes and a lot more from your iPod, iPhone and iPad back to your Windows PC or Mac.
SynciOS Manager - Syncios is a free yet powerful cellphone to PC transfer software which can help to transfer App, Music, Photo, Video and Ebook from PC to iPod/iPhone/iPad as well as Android Phone, Android to PC, iPhone PC and iPad to PC.