Repository: Textualize/rich (python)

Issue:
[BUG]In the latest versions rich "Title" without color
rich v 13.0.1  Title is painted over, see screenshot
rich v13.9.4r Title unpainted, see screenshot

OS GNU/Linux and OS Windows

```python
from rich.console import Console
from rich.panel import Panel
from rich.style import Style
import os

console = Console()
console.print(Panel(str(os.environ), title='[bold white]Title[/bold white]', style=Style(color="white", bgcolor="blue")))
```
![rich](https://github.com/user-attachments/assets/9eb0fd2e-13f9-4e2a-9b09-710c7d48f7ff)
Title should be like on the first screen (white on blue), in the second case (updated rich) white on dark (bug?)


Pull request:
fix(panel): fix title missing panel background
 Fix `Panel` title missing the panel background style.
    
This really just reverts the change in 7a38204. There's a history of issues related to the panel title styles, so I was careful to run all the examples in those issues to ensure there wasn't any regression.
    
Fixes #3569

## Type of changes

- [x] Bug fix
- [ ] New feature
- [ ] Documentation / docstrings
- [ ] Tests
- [ ] Other

## Checklist

- [x] I've run the latest [black](https://github.com/psf/black) with default args on new code.
- [x] I've updated CHANGELOG.md and CONTRIBUTORS.md where appropriate.
- [x] I've added tests for new code.
- [x] I accept that @willmcgugan may be pedantic in the code review.


Patch:
diff --git a/CHANGELOG.md b/CHANGELOG.md
index a9947656..1f24a4ea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+
 ## [Unreleased]
 
 ### Changed
@@ -17,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Fixed extraction of recursive exceptions https://github.com/Textualize/rich/pull/3772
 - Fixed padding applied to Syntax https://github.com/Textualize/rich/pull/3782
+- Fixed `Panel` title missing the panel background style https://github.com/Textualize/rich/issues/3569
 
 ### Added
 
diff --git a/rich/panel.py b/rich/panel.py
index d411e291..07587e3b 100644
--- a/rich/panel.py
+++ b/rich/panel.py
@@ -146,8 +146,7 @@ class Panel(JupyterMixin):
             Padding(self.renderable, _padding) if any(_padding) else self.renderable
         )
         style = console.get_style(self.style)
-        partial_border_style = console.get_style(self.border_style)
-        border_style = style + partial_border_style
+        border_style = style + console.get_style(self.border_style)
         width = (
             options.max_width
             if self.width is None
@@ -206,7 +205,7 @@ class Panel(JupyterMixin):
 
         title_text = self._title
         if title_text is not None:
-            title_text.stylize_before(partial_border_style)
+            title_text.stylize_before(border_style)
 
         child_width = (
             width - 2
@@ -255,7 +254,7 @@ class Panel(JupyterMixin):
 
         subtitle_text = self._subtitle
         if subtitle_text is not None:
-            subtitle_text.stylize_before(partial_border_style)
+            subtitle_text.stylize_before(border_style)
 
         if subtitle_text is None or width <= 4:
             yield Segment(box.get_bottom([width - 2]), border_style)


Test patch:
diff --git a/tests/test_panel.py b/tests/test_panel.py
index 65eb9bc0..33ce1afa 100644
--- a/tests/test_panel.py
+++ b/tests/test_panel.py
@@ -124,6 +124,54 @@ def test_title_text() -> None:
     assert result == expected
 
 
+def test_title_text_with_border_color() -> None:
+    """Regression test for https://github.com/Textualize/rich/issues/2745"""
+    panel = Panel(
+        "Hello, World",
+        border_style="blue",
+        title=Text("title", style="red"),
+        subtitle=Text("subtitle", style="magenta bold"),
+    )
+    console = Console(
+        file=io.StringIO(),
+        width=50,
+        height=20,
+        legacy_windows=False,
+        force_terminal=True,
+        color_system="truecolor",
+    )
+    console.print(panel)
+
+    result = console.file.getvalue()
+    print(repr(result))
+    expected = "\x1b[34m╭─\x1b[0m\x1b[34m───────────────────\x1b[0m\x1b[31m title \x1b[0m\x1b[34m────────────────────\x1b[0m\x1b[34m─╮\x1b[0m\n\x1b[34m│\x1b[0m Hello, World                                   \x1b[34m│\x1b[0m\n\x1b[34m╰─\x1b[0m\x1b[34m──────────────────\x1b[0m\x1b[1;35m subtitle \x1b[0m\x1b[34m──────────────────\x1b[0m\x1b[34m─╯\x1b[0m\n"
+    assert result == expected
+
+
+def test_title_text_with_panel_background() -> None:
+    """Regression test for https://github.com/Textualize/rich/issues/3569"""
+    panel = Panel(
+        "Hello, World",
+        style="on blue",
+        title=Text("title", style="red"),
+        subtitle=Text("subtitle", style="magenta bold"),
+    )
+    console = Console(
+        file=io.StringIO(),
+        width=50,
+        height=20,
+        legacy_windows=False,
+        force_terminal=True,
+        color_system="truecolor",
+    )
+    console.print(panel)
+
+    result = console.file.getvalue()
+    print(repr(result))
+    expected = "\x1b[44m╭─\x1b[0m\x1b[44m───────────────────\x1b[0m\x1b[31;44m title \x1b[0m\x1b[44m────────────────────\x1b[0m\x1b[44m─╮\x1b[0m\n\x1b[44m│\x1b[0m\x1b[44m \x1b[0m\x1b[44mHello, World\x1b[0m\x1b[44m                                  \x1b[0m\x1b[44m \x1b[0m\x1b[44m│\x1b[0m\n\x1b[44m╰─\x1b[0m\x1b[44m──────────────────\x1b[0m\x1b[1;35;44m subtitle \x1b[0m\x1b[44m──────────────────\x1b[0m\x1b[44m─╯\x1b[0m\n"
+    assert result == expected
+
+
 if __name__ == "__main__":
     expected = []
     for panel in tests: