Artifact gems now have a color_attributes table (for golem damage).

game/modules/tome/data/general/objects/boss-artifacts-maj-eyal.lua

@@ -556,6 +556,11 @@ newEntity{ base = "BASE_GEM",
 	desc = [[A piece of the scorched wood taken from the remains of Snaproot.]],
 	cost = 100,
 	material_level = 4,
+	color_attributes = {
+		damage_type = 'FIRE',
+		alt_damage_type = 'FLAMESHOCK',
+		particle = 'flame',
+	},
 	identified = false,
 	imbue_powers = {
 		resists = { [DamageType.NATURE] = 25, [DamageType.DARKNESS] = 10, [DamageType.COLD] = 10 },
@@ -971,6 +976,11 @@ newEntity{ base = "BASE_GEM", define_as = "CRYSTAL_FOCUS",
 	identified = false,
 	cost = 50,
 	material_level = 2,
+	color_attributes = {
+		damage_type = 'ARCANE',
+		alt_damage_type = 'ARCANE_SILENCE',
+		particle = 'manathrust',
+	},
 
 	max_power = 1, power_regen = 1,
 	use_power = { name = "combine with a weapon (makes a non enchanted weapon into an artifact)", power = 1, use = function(self, who, gem_inven, gem_item)
@@ -1097,6 +1107,11 @@ newEntity{ base = "BASE_GEM", define_as = "CRYSTAL_HEART",
 	identified = false,
 	cost = 200,
 	material_level = 5,
+	color_attributes = {
+		damage_type = 'ARCANE',
+		alt_damage_type = 'ARCANE_SILENCE',
+		particle = 'manathrust',
+	},
 
 	max_power = 1, power_regen = 1,
 	use_power = { name = "combine with a suit of body armor (makes a non enchanted armour into an artifact)", power = 1, use = function(self, who, gem_inven, gem_item)

game/modules/tome/data/general/objects/brotherhood-artifacts.lua

@@ -314,6 +314,11 @@ newEntity{ base = "BASE_GEM",
 	cost = 200,
 	quest = 1,
 	material_level = 5,
+	color_attributes = {
+		damage_type = 'NATURE',
+		alt_damage_type = 'SPYDRIC_POISON',
+		particle = 'slime',
+	},
 	wielder = {
 		inc_stats = {[Stats.STAT_CON] = 15, },
 		healing_factor = 0.3,

game/modules/tome/data/general/objects/world-artifacts-maj-eyal.lua

@@ -707,6 +707,11 @@ newEntity{ base = "BASE_GEM", define_as = "GEM_TELOS",
 	identified = false,
 	cost = 200,
 	material_level = 5,
+	color_attributes = {
+		damage_type = 'BLIGHT',
+		alt_damage_type = 'DRAINLIFE',
+		particle = 'slime',
+	},
 	carrier = {
 		lite = 2,
 	},

game/modules/tome/data/general/objects/world-artifacts.lua

@@ -40,6 +40,11 @@ newEntity{ base = "BASE_GEM",
 	cost = 200,
 	identified = false,
 	material_level = 4,
+	color_attributes = {
+		damage_type = 'LIGHTNING',
+		alt_damage_type = 'LIGHTNING_DAZE',
+		particle = 'lightning_explosion',
+	},
 	wielder = {
 		inc_stats = {[Stats.STAT_DEX] = 8, [Stats.STAT_CUN] = 8 },
 		inc_damage = {[DamageType.LIGHTNING] = 20 },
@@ -327,6 +332,11 @@ newEntity{ base = "BASE_GEM",
 	identified = false,
 	rarity = 250,
 	material_level = 3,
+	color_attributes = {
+		damage_type = 'LIGHT',
+		alt_damage_type = 'LIGHT_BLIND',
+		particle = 'light',},
+	},
 	desc = [[The first Halfling mages during the Age of Allure discovered how to capture the Sunlight and infuse gems with it.
 This star is the culmination of their craft. Light radiates from its ever-shifting yellow surface.]],
 	cost = 400,
@@ -4847,6 +4857,11 @@ newEntity{ base = "BASE_GEM", --Thanks SageAcrin and Graziel!
 	cost = 200,
 	identified = false,
 	material_level = 3,
+	color_attributes = {
+		damage_type = 'LIGHTNING',
+		alt_damage_type = 'LIGHTNING_DAZE',
+		particle = 'lightning_explosion',
+	},
 	wielder = {
 		inc_stats = {[Stats.STAT_MAG] = 5, [Stats.STAT_CON] = 5, },
 		inc_damage = {[DamageType.FIRE] = 10, [DamageType.COLD] = 10, [DamageType.LIGHTNING] = 10,  },