How to put a mermaid configuration in the properties of the markdown file?

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1

The following mermaid code works well in obsidian. My problem is that every time i create a new mermaid flowchart I have to write the same property`%%{init:{theme:neutral}}%%` over and over again.

My question is: How to put a mermaid configuration in the properties of the markdown file?

---
author: myname
date: 2026-02-16
---

## a new chart

```mermaid
%%{init:{'theme':'neutral'}}%%
flowchart LR
    Start --> Stop
```

## another chart
```mermaid
%%{init:{'theme':'neutral'}}%%
flowchart LR
    again --> config
```