Reduced a bit the alpha channel of clouds in the Old Forest

git-svn-id: http://svn.net-core.org/repos/t-engine4@2543 51575b47-30f0-44d4-a5cc-537603b46e54

game/modules/tome/data/zones/old-forest/zone.lua

@@ -81,7 +81,7 @@ return {
 		local Map = require "engine.Map"
 		level.foreground_particle = require("engine.Particles").new("raindrops", 1, {width=Map.viewport.width, height=Map.viewport.height})
 
-		game.state:makeWeather(level, 6, {max_nb=3, chance=1, dir=110, speed={0.1, 0.6}, alpha={0.4, 0.6}, particle_name="weather/dark_cloud_%02d"})
+		game.state:makeWeather(level, 6, {max_nb=3, chance=1, dir=110, speed={0.1, 0.6}, alpha={0.3, 0.5}, particle_name="weather/dark_cloud_%02d"})
 
 		-- Place a lore note on each level
 		game:placeRandomLoreObject("NOTE"..level.level)