Title. Support for both Optifine and CTM format would be great, but either one would be fine for me. Specifically, so that I can use the glass textures from my chosen connected-texture resource pack with the panes in this mod, so that they connect the way normal glass panes do with said texture pack.
I can't stand the vanilla minecraft glass grid, so I don't think I'll be able to use the blocks in this mod for decor unless there's some way to make them look connected.

Sorry, the way Optifine handles textures is not compatible to the underlying mechanics of PITG. I use multipart textures to show/hide the interfacing borders between panes for non-vanilla textured panes