why does omnishard not consider restore cells to be valuable? they're one of the most valuable cells you can get
Omnishard is designed to help players locate valuable resources in darker levels where visibility is limited. Restore cells are not valuables, even though they are important for your progress.
I do plan to tweak Omnishard's description in the next update to make that distinction clearer. It's not intended to highlight restore cells in the dark, since that would essentially remove the challenge of darkness and make light-related items redundant.