Yes, try adding this script right below Window_BattleStatus. This is untested, but it ought to work fine.
class Window_BattleStatus
#--------------------------------------------------------------------------
# * Draw HP
# actor : actor
# x : draw spot x-coordinate
# y : draw spot y-coordinate
# width : draw spot width
#--------------------------------------------------------------------------
def draw_actor_hp(actor, x, y, width = 144)
# Draw "HP" text string
#----------------------------------------------------------------------
# EDITABLE:
# To set the new color, change around the numbers below after Color.new
# The format is Color.new (red, green, blue, opacity)
#----------------------------------------------------------------------
self.contents.font.color = Color.new (100, 100, 100, 255)
self.contents.draw_text(x, y, 32, 32, $data_system.words.hp)
# Calculate if there is draw space for MaxHP
if width - 32 >= 108
hp_x = x + width - 108
flag = true
elsif width - 32 >= 48
hp_x = x + width - 48
flag = false
end
# Draw HP
self.contents.font.color = actor.hp == 0 ? knockout_color :
actor.hp <= actor.maxhp / 4 ? crisis_color : normal_color
self.contents.draw_text(hp_x, y, 48, 32, actor.hp.to_s, 2)
# Draw MaxHP
if flag
self.contents.font.color = normal_color
self.contents.draw_text(hp_x + 48, y, 12, 32, "/", 1)
self.contents.draw_text(hp_x + 60, y, 48, 32, actor.maxhp.to_s)
end
end
end