Go to your profile and click the "Your account" button at the top. Then select "Preferences" and at the top you'll see the option to change to dark mode. :)
Keepers breed all year, so you shouldn't have to wait until spring. Keep an eye on the classifieds section. Ghosts are usually easy to find. They breed like roaches. π
That last photo is awesome! Such a nice piece of wood to pose on. I love seeing them just chill outside of their enclosures. I've only kept a few of this species, but they were fun to work with and easy to breed.
It's not uncommon. I suggest skipping feeding for several days and offering plenty of water by spraying some droplets near her mouth. I wouldn't worry much about it unless she starts vomiting black fluid. Good luck. π
I once had a ghost that didn't eat for a couple of weeks. I expected him to die, but his appetite returned. I've heard accounts of male ghost mantises rarely eating throughout their entire lifespan.