[BUG] Bold panel borders not displayed correctly on Jupyter

[AAriam]

• I've checked docs and closed issues for possible solutions.
• I can't find my issue in the FAQ.

Describe the bug

When the panel border style is set to bold, the panel border is not displayed correctly in Jupyter (it works fine in iTerm2):

import rich
from rich.panel import Panel
from rich import box
rich.print(Panel("Content", box=box.SQUARE, border_style="bold", title="Title"))

produces:

with another box:

rich.print(Panel("Content", box=box.ROUNDED, border_style="bold", title="Title"))

Platform

Click to expand

Platform: JupyterLab 4.2.5 (latest) on Mac

Rich Diagnosis:

╭──────────────────── <class 'rich.console.Console'> ─────────────────────╮
│ A high level console interface.                                         │
│                                                                         │
│ ╭─────────────────────────────────────────────────────────────────────╮ │
│ │ <console width=115 ColorSystem.TRUECOLOR>                           │ │
│ ╰─────────────────────────────────────────────────────────────────────╯ │
│                                                                         │
│     color_system = 'truecolor'                                          │
│         encoding = 'utf-8'                                              │
│             file = <ipykernel.iostream.OutStream object at 0x1085ebc70> │
│           height = 100                                                  │
│    is_alt_screen = False                                                │
│ is_dumb_terminal = False                                                │
│   is_interactive = False                                                │
│       is_jupyter = True                                                 │
│      is_terminal = False                                                │
│   legacy_windows = False                                                │
│         no_color = False                                                │
│          options = ConsoleOptions(                                      │
│                        size=ConsoleDimensions(width=115, height=100),   │
│                        legacy_windows=False,                            │
│                        min_width=1,                                     │
│                        max_width=115,                                   │
│                        is_terminal=False,                               │
│                        encoding='utf-8',                                │
│                        max_height=100,                                  │
│                        justify=None,                                    │
│                        overflow=None,                                   │
│                        no_wrap=False,                                   │
│                        highlight=None,                                  │
│                        markup=None,                                     │
│                        height=None                                      │
│                    )                                                    │
│            quiet = False                                                │
│           record = False                                                │
│         safe_box = True                                                 │
│             size = ConsoleDimensions(width=115, height=100)             │
│        soft_wrap = False                                                │
│           stderr = False                                                │
│            style = None                                                 │
│         tab_size = 8                                                    │
│            width = 115                                                  │
╰─────────────────────────────────────────────────────────────────────────╯
╭─── <class 'rich._windows.WindowsConsoleFeatures'> ────╮
│ Windows features available.                           │
│                                                       │
│ ╭───────────────────────────────────────────────────╮ │
│ │ WindowsConsoleFeatures(vt=False, truecolor=False) │ │
│ ╰───────────────────────────────────────────────────╯ │
│                                                       │
│ truecolor = False                                     │
│        vt = False                                     │
╰───────────────────────────────────────────────────────╯
╭────── Environment Variables ───────╮
│ {                                  │
│     'TERM': 'xterm-color',         │
│     'COLORTERM': 'truecolor',      │
│     'CLICOLOR': '1',               │
│     'NO_COLOR': None,              │
│     'TERM_PROGRAM': 'iTerm.app',   │
│     'COLUMNS': None,               │
│     'LINES': None,                 │
│     'JUPYTER_COLUMNS': None,       │
│     'JUPYTER_LINES': None,         │
│     'JPY_PARENT_PID': '36043',     │
│     'VSCODE_VERBOSE_LOGGING': None │
│ }                                  │
╰────────────────────────────────────╯
platform="Darwin"

[github-actions]

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

• Strange colors in console output.

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

[willmcgugan]

These issues are down to your browsers / font / Jupyter implementation. And not something Rich can do much about I'm afraid.

[github-actions]

I hope we solved your problem.

If you like using Rich, you might also enjoy Textual