img, json export and import problems

[james-ep01]

Introduction

I have some questions about import and export.

First question: Button cannot be expressed in exports such as svg, png, json, etc. The button should be expressed. I use the button to turn the objects on or off, but I can't see the button, so I can't express whether it's on or off.

I can't see the button in the export image, json ...

2nd question: I put watermark image in paper but watermark image can't be represented in svg, png, json. What should I do?

Third question: What should I do if I don't get padding in my svg export?
below no padding svg image(There is padding in the png file. )

4th question (fatal problem): You can read saved files with json that I made in my app from another joint joint app. It's security fatal if I get all the original svg files I made, and users complete, save and record their drawings and it's read in another joint app. How do I solve this (public can read in any joint app, but only the json files written in secured app are read)?
Below is the code I wrote as a sample from the kitchensink url of jointjs, which is json exported and imported.

Thank you.

Steps to reproduce

No response

Restrictions & Constraints

No response

Does your question relate to JointJS or JointJS+. Select both if applicable.

JointJS+