From a91bd37ea932c827a1c43eb653997ccb3c518eb3 Mon Sep 17 00:00:00 2001
From: Hermet Park <hermetpark@gmail.com>
Date: Fri, 30 Jul 2021 10:34:48 +0900
Subject: [PATCH] tvg_format: save/restore default view size in the data.

current bounding box of the paint is the default view size...

Do we have any better information of that?

This also fixes the wrong result after changing the size of the tvg picture.