Bug located in colormap for displaying graphics

### 🔍 Before submitting the issue

- [x] I have searched among the existing issues
- [x] I am using a Python virtual environment

### 🐞 Description of the bug

As in comments:
https://github.com/ansys/pyfluent-visualization/pull/637#issuecomment-3841627446

### 📝 Steps to reproduce

https://github.com/ansys/pyfluent-visualization/pull/637#issuecomment-3841627446

### 💻 Which operating system are you using?

Windows

### 📀 Which ANSYS version are you using?

_No response_

### 🐍 Which Python version are you using?

3.12

### 📦 Installed packages

```shell
.
```