Modify push.lua to use nearest-neighbor canvas filtering

lib/push.lua

@@ -80,11 +80,14 @@ function push:setupCanvas(canvases)
   return self
 end
 function push:addCanvas(params)
+  local canvas = love.graphics.newCanvas(self._WWIDTH, self._WHEIGHT)
+  canvas:setFilter("nearest", "nearest")
+
   table.insert(self.canvases, {
     name = params.name,
     private = params.private,
     shader = params.shader,
-    canvas = love.graphics.newCanvas(self._WWIDTH, self._WHEIGHT),
+    canvas = canvas,
     stencil = params.stencil or self._stencil
   })
 end