Add gray fog sky for circle level

mods/eb_levels/levels.lua

@@ -250,7 +250,7 @@ eb_levels.register_level({
 			vector.add(vector.new(15,0,-15),vector.new(-15,0,18)),
 		}, start_active = true},
 	},
-	sky = "blood_red",
+	sky = "gray_fog",
 	timeofday = 0.5,
 })
 

mods/eb_sky/init.lua

@@ -181,3 +181,28 @@ eb_sky.register_sky("darkness", {
 	},
 	day_night_ratio = 0.0,
 })
+
+eb_sky.register_sky("gray_fog", {
+	sky = {
+		type = "regular",
+		clouds = false,
+		sky_color = {
+			day_sky = "#202020",
+			day_horizon = "#202020",
+			dawn_sky = "#202020",
+			dawn_horizon = "#202020",
+			night_sky = "#202020",
+			night_horizon = "#202020",
+			fog_tint_type = "custom",
+			fog_sun_tint = "#000000",
+			fog_moon_tint = "#000000",
+		},
+		fog = {
+			fog_start = 0.3,
+			fog_distance = 28,
+		},
+	},
+	stars = {
+		visible = false,
+	},
+})