Removing unnecessary `local mino = {...}`

scene/key_config.lua

@@ -1,11 +1,8 @@
 local KeyConfigScene = SCENE:extend()
-
 KeyConfigScene.title = "Key Config"
 
 require 'settings'
 
-local minos = {'R_d', 'O_d', 'Y_d', 'G_d', 'C_d', 'B_d', 'M_d'}
-
 local configurable_inputs = {
     "menu_decide",
     "menu_back",
@@ -51,7 +48,7 @@ function KeyConfigScene:update()
 end
 
 function KeyConfigScene:render()
-    mainBackground()
+    MainBackground()
     for i, input in ipairs(configurable_inputs) do
         drawText(input_names[input], 40, 50 + i * 20, 200, "left")
         if self.set_inputs[input] then