You should be able to stain glass panes directly, similar to glass blocks : r/minecraftsuggestions
Stained Glass Pane Blocks in Minecraft
Stained Glass Pane – Minecraft Wiki
Melody's Stained Glass Minecraft Texture Pack
Black Stained Glass – Minecraft Information
How To Make Black Stained Glass Panes In Minecraft #Shorts - YouTube
How to Make Glass in Minecraft: 8 Steps (with Pictures) - wikiHow
How to make stained glass in Minecraft 1.19 update
Pane In The Glass - Minecraft Mods - CurseForge
How To Make Black Glass pane In Minecraft | Minecraft Tutorial - YouTube
How to Make and Use Glass in Minecraft
How To Make Black Stained Glass Pane In Minecraft
How to make Black Stained Glass Pane in Minecraft
An inventory of light grey stained glass panes. : r/Minecraft
Glass Pane – Minecraft Wiki
Glass Pane – Minecraft Wiki
Tinted Glass – Minecraft Wiki
Why did Mojang add tinted glass if black stained glass was already a thing... : r/Minecraft
Glass Pane – Minecraft Wiki
