Hi Squidhat,
Thanks for reaching out to the community. Does the customized clock on your Home Screen remains grayed out after restarting your iPhone? Have you tested other custom home screens to see if the issue remain present? Be sure to follow the steps and article below for restarting your iPhone.
- "Press and hold either volume button and the side button until the power-off slider appears.
The volume button is located on the left side of the device, and the side button is located on the right
2.Drag the slider, then wait 30 seconds for your device to turn off. If your device is frozen or unresponsive, force restart your device.
3.To turn your device back on, press and hold the side button (on the right side of your iPhone) until you see the Apple logo".
Restart your iPhone - Apple Support
Keep us updated.