diff --git a/assets/cubyz/blocks/glass/black.json b/assets/cubyz/blocks/glass/black.json
index f506ba45..70df27a7 100644
--- a/assets/cubyz/blocks/glass/black.json
+++ b/assets/cubyz/blocks/glass/black.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x040404,
+	"absorbedLight" : 0xffffff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/blue.json b/assets/cubyz/blocks/glass/blue.json
index 8e7342e2..003f9600 100644
--- a/assets/cubyz/blocks/glass/blue.json
+++ b/assets/cubyz/blocks/glass/blue.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x0000d0,
+	"absorbedLight" : 0xffff01,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/brown.json b/assets/cubyz/blocks/glass/brown.json
index 29270c4e..1ebea23d 100644
--- a/assets/cubyz/blocks/glass/brown.json
+++ b/assets/cubyz/blocks/glass/brown.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x804000,
+	"absorbedLight" : 0x80b0ff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/cyan.json b/assets/cubyz/blocks/glass/cyan.json
index f2498834..29566485 100644
--- a/assets/cubyz/blocks/glass/cyan.json
+++ b/assets/cubyz/blocks/glass/cyan.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x00e0b0,
+	"absorbedLight" : 0xff0102,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/dark_gray.json b/assets/cubyz/blocks/glass/dark_gray.json
index 8f9c7c43..8b176e53 100644
--- a/assets/cubyz/blocks/glass/dark_gray.json
+++ b/assets/cubyz/blocks/glass/dark_gray.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x444444,
+	"absorbedLight" : 0xbbbbbb,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/dark_green.json b/assets/cubyz/blocks/glass/dark_green.json
index f4d6b771..dbd4b2cb 100644
--- a/assets/cubyz/blocks/glass/dark_green.json
+++ b/assets/cubyz/blocks/glass/dark_green.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x008000,
+	"absorbedLight" : 0xff80ff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/dark_red.json b/assets/cubyz/blocks/glass/dark_red.json
index 4009718f..dcd7e289 100644
--- a/assets/cubyz/blocks/glass/dark_red.json
+++ b/assets/cubyz/blocks/glass/dark_red.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x800000,
+	"absorbedLight" : 0x80ffff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/gray.json b/assets/cubyz/blocks/glass/gray.json
index 9b4974c3..ea7fe794 100644
--- a/assets/cubyz/blocks/glass/gray.json
+++ b/assets/cubyz/blocks/glass/gray.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x808080,
+	"absorbedLight" : 0x808080,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/green.json b/assets/cubyz/blocks/glass/green.json
index 94e2e79d..228ab6d3 100644
--- a/assets/cubyz/blocks/glass/green.json
+++ b/assets/cubyz/blocks/glass/green.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x00e000,
+	"absorbedLight" : 0xff01ff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/light_blue.json b/assets/cubyz/blocks/glass/light_blue.json
index 9275042d..688841c7 100644
--- a/assets/cubyz/blocks/glass/light_blue.json
+++ b/assets/cubyz/blocks/glass/light_blue.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x4040e0,
+	"absorbedLight" : 0xb0b001,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/orange.json b/assets/cubyz/blocks/glass/orange.json
index d4c812d4..5fe09925 100644
--- a/assets/cubyz/blocks/glass/orange.json
+++ b/assets/cubyz/blocks/glass/orange.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0xe08000,
+	"absorbedLight" : 0x0180ff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/purple.json b/assets/cubyz/blocks/glass/purple.json
index 953f567a..6113528a 100644
--- a/assets/cubyz/blocks/glass/purple.json
+++ b/assets/cubyz/blocks/glass/purple.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0xec0ec0,
+	"absorbedLight" : 0x01f130,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/red.json b/assets/cubyz/blocks/glass/red.json
index 4ed625fb..0deb54e2 100644
--- a/assets/cubyz/blocks/glass/red.json
+++ b/assets/cubyz/blocks/glass/red.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0xe00000,
+	"absorbedLight" : 0x01ffff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/uranium.json b/assets/cubyz/blocks/glass/uranium.json
index d9a0ad1f..558fc527 100644
--- a/assets/cubyz/blocks/glass/uranium.json
+++ b/assets/cubyz/blocks/glass/uranium.json
@@ -6,6 +6,8 @@
 	],
 	"transparent" : true,
 	"absorption" : 0xa0e000,
+	"absorbedLight" : 0x4001ff,
+	"emittedLight" : 0x80ff00,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:uranium_glass"
diff --git a/assets/cubyz/blocks/glass/violet.json b/assets/cubyz/blocks/glass/violet.json
index 4fb261c3..990ede62 100644
--- a/assets/cubyz/blocks/glass/violet.json
+++ b/assets/cubyz/blocks/glass/violet.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0x8000e0,
+	"absorbedLight" : 0x80ff01,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/white.json b/assets/cubyz/blocks/glass/white.json
index 7d8f4462..0ebdb317 100644
--- a/assets/cubyz/blocks/glass/white.json
+++ b/assets/cubyz/blocks/glass/white.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0xe0e0e0,
+	"absorbedLight" : 0x010101,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"
diff --git a/assets/cubyz/blocks/glass/yellow.json b/assets/cubyz/blocks/glass/yellow.json
index f476b447..f072d7a4 100644
--- a/assets/cubyz/blocks/glass/yellow.json
+++ b/assets/cubyz/blocks/glass/yellow.json
@@ -6,6 +6,7 @@
 	],
 	"transparent" : true,
 	"absorption" : 0xe0e000,
+	"absorbedLight" : 0x0101ff,
 	"reflectivity" : 0.08,
 	"model" : "cube",
 	"texture" : "cubyz:glass"