Xpanes: Add optional 'use_texture_alpha' parameter to registration

game_api.txt

@@ -690,6 +690,7 @@ Creates panes that automatically connect to each other
		groups = {group = rating}, -- Uses the known node groups, see [Known damage and digging time defining groups]
		sounds = SoundSpec,        -- See [#Default sounds]
		recipe = {{"","","","","","","","",""}}, -- Recipe field only
		use_texture_alpha = true, -- Optional boolean (default: `false`) for colored glass panes
	}

Raillike definitions

mods/xpanes/init.lua

@@ -104,6 +104,7 @@ function xpanes.register_pane(name, def)
		groups = flatgroups,
		drop = "xpanes:" .. name .. "_flat",
		sounds = def.sounds,
		use_texture_alpha = def.use_texture_alpha or false,
		node_box = {
			type = "fixed",
			fixed = {{-1/2, -1/2, -1/32, 1/2, 1/2, 1/32}},
@@ -128,6 +129,7 @@ function xpanes.register_pane(name, def)
		groups = groups,
		drop = "xpanes:" .. name .. "_flat",
		sounds = def.sounds,
		use_texture_alpha = def.use_texture_alpha or false,
		node_box = {
			type = "connected",
			fixed = {{-1/32, -1/2, -1/32, 1/32, 1/2, 1/32}},