diff --git a/lib/simple_ui/element.lua b/lib/simple_ui/element.lua
index 228d9ce..62c38cf 100644
--- a/lib/simple_ui/element.lua
+++ b/lib/simple_ui/element.lua
@@ -3,10 +3,8 @@ local Rect = require "lib.simple_ui.rect"
 --- @class UIElement
 --- @field bounds Rect Прямоугольник, в границах которого размещается элемент. Размеры и положение в *локальных* координатах
 --- @field transform love.Transform Преобразование из локальных координат элемента (bounds) в экранные координаты
-local uiElement = {
-    bounds = Rect {},
-    transform = love.math.newTransform()
-}
+---
+local uiElement = {}
 uiElement.__index = uiElement
 
 function uiElement:update(dt) end
@@ -18,4 +16,14 @@ function uiElement:hitTest(screenX, screenY)
     return self.bounds:hasPoint(lx, ly)
 end
 
+--- @generic T : UIElement
+--- @param values table
+--- @param self T
+--- @return T
+function uiElement.new(self, values)
+    values.bounds = values.bounds or Rect {}
+    values.transform = values.transform or love.math.newTransform()
+    return setmetatable(values, self)
+end
+
 return uiElement
diff --git a/lib/simple_ui/level/layout.lua b/lib/simple_ui/level/layout.lua
index 27162b4..623afc5 100644
--- a/lib/simple_ui/level/layout.lua
+++ b/lib/simple_ui/level/layout.lua
@@ -12,12 +12,6 @@ local Rect = require "lib.simple_ui.rect"
 local skillButton = setmetatable({}, Element)
 skillButton.__index = skillButton
 
-function skillButton.new(icon)
-    return setmetatable({
-        icon = icon
-    }, skillButton)
-end
-
 function skillButton:update(dt)
     local mx, my = love.mouse.getPosition()
     if self:hitTest(mx, my) then
@@ -77,7 +71,7 @@ function skillRow.new(characterId)
     local char = Tree.level.characters[characterId]
     char:try(Tree.behaviors.spellcaster, function(behavior)
         for i, spell in ipairs(behavior.spellbook) do
-            local skb = skillButton.new(spell.tag)
+            local skb = skillButton:new { icon = spell.tag }
             skb.onClick = function()
                 skb.selected = not skb.selected
                 if t.selected then t.selected.selected = false end