Only regular glass pane is changed to brown color on abandoned villages

Thank you for your report!

However, this issue is Invalid.

This behavior is consistent between Bedrock Edition and Java Edition. This means you have posted a feature request or a suggestion. This site is for bug reports only. For suggestions, please visit Minecraft Suggestions on Reddit or visit the Feedback website.

Quick Links:
📓 Issue Guidelines – 💬 Mojang Support – 📓 Project Summary – 📧 Suggestions – 📖 Minecraft Wiki

so certain things can never be considered bugs if they happen on both editions? this feels like a bug to me.