Can't change background color in MODES example

[davidsielertpge]

Please give a brief but clear explanation of the issue. If you can, include a complete working example that demonstrates the bug.

Running the modes example I'm unable to change the random background colors using TCSS

example

Screen {
    background: black;
}

ModesApp {
    background: black;
}

DashboardScreen {
    background: black 100%;
}

SettingsScreen {
    background: black;
}

HelpScreen {
    background: black;
}

It will be helpful if you run the following command and paste the results:

# Textual Diagnostics

## Versions

| Name    | Value  |
|---------|--------|
| Textual | 0.44.1 |
| Rich    | 13.7.0 |

## Python

| Name           | Value                                                        |
|----------------|--------------------------------------------------------------|
| Version        | 3.9.4                                                        |
| Implementation | CPython                                                      |
| Compiler       | MSC v.1928 64 bit (AMD64)                                    |
| Executable     | C:\Users\dq1f\proj\Onetrust-upgrade\.venv\Scripts\python.exe |

## Operating System

| Name    | Value      |
|---------|------------|
| System  | Windows    |
| Release | 10         |
| Version | 10.0.19041 |

## Terminal

| Name                 | Value            |
|----------------------|------------------|
| Terminal Application | Windows Terminal |
| TERM                 | *Not set*        |
| COLORTERM            | *Not set*        |
| FORCE_COLOR          | *Not set*        |
| NO_COLOR             | *Not set*        |

## Rich Console options

| Name           | Value                |
|----------------|----------------------|
| size           | width=116, height=45 |
| legacy_windows | False                |
| min_width      | 1                    |
| max_width      | 116                  |
| is_terminal    | True                 |
| encoding       | utf-8                |
| max_height     | 45                   |
| justify        | None                 |
| overflow       | None                 |
| no_wrap        | False                |
| highlight      | None                 |
| markup         | None                 |
| height         | None                 |

Feel free to add screenshots and / or videos. These can be very helpful!

[github-actions]

We found the following entries in the FAQ which you may find helpful:

• How can I set a translucent app background?
• Why doesn't Textual look good on macOS?
• How can I select and copy text in a Textual app?

Feel free to close this issue if you found an answer in the FAQ. Otherwise, please give us a little time to review.

This is an automated reply, generated by FAQtory

[davidsielertpge]

I'm daft. I didn't realize the background was coming from the Placeholder widget. once its removed the colors behave as expected.
Sorry for the noise

[github-actions]

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