Trying to combine white stained glass pane with cyan stained glass and glow berries does not yield a creation.

If the mod made all glass pane types usable, it would give players a way to get rid of extra glass. It would add more reasons to create glowsticks. I would just ignore the panes color and always adopt the blocks color.

You could even let it be user defined in the config with three categories. Blocks, panes, and item. This way people could add blocks from other mods. Such as potions of glowing from The Undergarden or the three types of glowing flowers from Deeper and Darker.

But really just the first half I feel is super needed, using any panes.