I looked up how to display Facebook page wall icons with proper size matching for better visibility, so taking notes.

・Reference: Facebookページのウォールアイコンをきれいに表示する方法 | Facebookを活用しよう！Facebookページの作成はRefineでね

It seems thumbnail images displayed in wall posts can be displayed cleanly by specifying them precisely in px units.

That’s all from the Gemba regarding Facebook page wall icon display optimization.