Change the hue of pictures

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Here are some example of what do:

Hue in icons:

Code:

my_icon = RPG::Cache.icon("001-Weapon01",60)

Change the skin for a window:

Code:

self.windowskin = RPG::Cache.windowskin("yellow_skin",-50)

Change the skin for all windows:

Code:

$game_system.windowskin_name = "001-Blue01"
        $game_system.windowskin_hue = 50

Paste this below the Main section:

Code:

#-----------------------------------------------------------------
module RPG
#-----------------------------------------------------------------
  module Cache
#-----------------------------------------------------------------
    def self.picture(filename,hue=0)
      self.load_bitmap("Graphics/Pictures/",filename,hue)
    end
#-----------------------------------------------------------------
    def self.icon(filename,hue=0)
      self.load_bitmap("Graphics/Icons/",filename,hue)
    end
#-----------------------------------------------------------------
    def self.windowskin(filename,hue=0)
      self.load_bitmap("Graphics/Windowskins/",filename,hue)
    end
#-----------------------------------------------------------------
  end
#-----------------------------------------------------------------
end
#-----------------------------------------------------------------
class Window_Base < Window
#-----------------------------------------------------------------
  def initialize(x,y,width,height)
    super()
    @windowskin_name = $game_system.windowskin_name
    @windowskin_hue = $game_system.windowskin_hue
    self.windowskin = RPG::Cache.windowskin(@windowskin_name,@windowskin_hue)
    self.x = x
    self.y = y
    self.width = width
    self.height = height
    self.z = 100
  end
#-----------------------------------------------------------------
  def update
    super
    if $game_system.windowskin_name != @windowskin_name or
     $game_system.windowskin_hue != @windowskin_hue
      @windowskin_name = $game_system.windowskin_name
      @windowskin_hue = $game_system.windowskin_hue
      self.windowskin = RPG::Cache.windowskin(@windowskin_name,@windowskin_hue)
    end
  end
#-----------------------------------------------------------------
end
#-----------------------------------------------------------------
class Game_System
#-----------------------------------------------------------------
  attr_accessor :windowskin_hue
#-----------------------------------------------------------------
  alias sk_windowskinhue_init initialize
  def initialize
    sk_windowskinhue_init
    @windowskin_hue = 0
  end
#-----------------------------------------------------------------
end
#-----------------------------------------------------------------