the background color of inline figure out of control

I have read https://github.com/microsoft/vscode-jupyter/issues/2904. The background color is still strange with different conditions. I’m sorry for creating a new issue. In the non-interactive mode (%matplotlib inline), I must type fig to show the previous picture again in the other cells. But the label of axis is hard to see because of transparent background. unexpected case: what happened? normal case: everything ok

Environment data

• VS Code version: 1.67.2

• Jupyter Extension version (available under the Extensions sidebar): v2022.5.1001311010

• Python Extension version (available under the Extensions sidebar): v2022.7.11401005

• OS (Windows | Mac | Linux distro) and version: Ubuntu 20.04.4 LTS x86_64

• Python and/or Anaconda version: conda version : 4.12.0 & python 3.10.4

• Type of virtual environment used (N/A | venv | virtualenv | conda | …): conda

• Jupyter server running: Local

Expected behaviour

Actual behaviour

Steps to reproduce:

%matplotlib inline
from matplotlib import pyplot as plt
fig,ax = plt.subplots(figsize=[10,3])
fig

Logs

Output for Jupyter in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Jupyter)

Visual Studio Code (1.67.2, undefined, desktop)
Jupyter Extension Version: 2022.5.1001311010.
Python Extension Version: 2022.7.11401005.
Workspace folder /home/wxz/Program/python/toolkit
info 15:40:24.54: ZMQ install verified.
User belongs to experiment group 'jupyterTestcf'
User belongs to experiment group 'jupyterEnhancedDataViewer'
info 15:40:24.237: Old kernelSpecs (created by Jupyter extension) stored in directory /home/wxz/.local/share/jupyter/kernels/__old_vscode_kernelspecs
info 15:40:24.251: Experiment status for python is {"enabled":true,"optInto":[],"optOutFrom":[]}
info 15:40:24.363: Starting Jupyter Session id = .jvsc74a57bd07d83130797eb8105b0d72229ce3afe26e11a7f3d1d2ef83445961f78e12cdb01./home/wxz/Program/miniconda3/envs/seismic/python./home/wxz/Program/miniconda3/envs/seismic/python.-m#ipykernel_launcher for /home/wxz/Program/python/toolkit/plot/test.ipynb (disableUI=true)
info 15:40:24.365: Creating raw notebook for /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:24.365: Computing working directory /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:24.427: Starting raw kernel seismic (Python 3.10.4) for interpreter /home/wxz/Program/miniconda3/envs/seismic/bin/python
info 15:40:24.431: Kernel launching with ports 9000,9001,9002,9003,9004. Start port is 9000
info 15:40:24.519: Preferred Remote kernel for /home/wxz/Program/python/toolkit/plot/test.ipynb is undefined
info 15:40:24.519: Find preferred kernel for /home/wxz/Program/python/toolkit/plot/test.ipynb with metadata {"kernelspec":{"display_name":"Python 3.10.4 ('seismic')","language":"python","name":"python3"},"language_info":{"codemirror_mode":{"name":"ipython","version":3},"file_extension":".py","mimetype":"text/x-python","name":"python","nbconvert_exporter":"python","pygments_lexer":"ipython3","version":"3.10.4"},"orig_nbformat":4,"vscode":{"interpreter":{"hash":"7d83130797eb8105b0d72229ce3afe26e11a7f3d1d2ef83445961f78e12cdb01"}}} & preferred interpreter /home/wxz/Program/miniconda3/envs/seismic/bin/python
info 15:40:24.523: Preferred Remote kernel for /home/wxz/Program/python/toolkit/plot/test.ipynb is undefined
info 15:40:24.523: Preferred kernel .jvsc74a57bd07d83130797eb8105b0d72229ce3afe26e11a7f3d1d2ef83445961f78e12cdb01./home/wxz/Program/miniconda3/envs/seismic/python./home/wxz/Program/miniconda3/envs/seismic/python.-m#ipykernel_launcher is exact match
info 15:40:24.523: PreferredConnection: .jvsc74a57bd07d83130797eb8105b0d72229ce3afe26e11a7f3d1d2ef83445961f78e12cdb01./home/wxz/Program/miniconda3/envs/seismic/python./home/wxz/Program/miniconda3/envs/seismic/python.-m#ipykernel_launcher found for NotebookDocument: /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:24.523: TargetController found ID: .jvsc74a57bd07d83130797eb8105b0d72229ce3afe26e11a7f3d1d2ef83445961f78e12cdb01./home/wxz/Program/miniconda3/envs/seismic/python./home/wxz/Program/miniconda3/envs/seismic/python.-m#ipykernel_launcher for document /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:24.833: Process Execution: > ~/Program/miniconda3/envs/seismic/bin/python -m pip list
> ~/Program/miniconda3/envs/seismic/bin/python -m pip list
info 15:40:24.846: Process Execution: > ~/Program/miniconda3/envs/seismic/bin/python -c "import ipykernel; print(ipykernel.__version__); print("5dc3a68c-e34e-4080-9c3e-2a532b2ccb4d"); print(ipykernel.__file__)"
> ~/Program/miniconda3/envs/seismic/bin/python -c "import ipykernel; print(ipykernel.__version__); print("5dc3a68c-e34e-4080-9c3e-2a532b2ccb4d"); print(ipykernel.__file__)"
info 15:40:24.848: Adding env Variable PYTHONNOUSERSITE to /home/wxz/Program/miniconda3/envs/seismic/bin/python
info 15:40:24.862: Process Execution: > ~/Program/miniconda3/envs/seismic/bin/python -m ipykernel_launcher --ip=127.0.0.1 --stdin=9003 --control=9001 --hb=9000 --Session.signature_scheme="hmac-sha256" --Session.key=b"c259473e-1551-4ecb-9653-510a6abc7686" --shell=9002 --transport="tcp" --iopub=9004 --f=/home/wxz/.local/share/jupyter/runtime/kernel-24810617NXGVeIwrNIi.json
> ~/Program/miniconda3/envs/seismic/bin/python -m ipykernel_launcher --ip=127.0.0.1 --stdin=9003 --control=9001 --hb=9000 --Session.signature_scheme="hmac-sha256" --Session.key=b"c259473e-1551-4ecb-9653-510a6abc7686" --shell=9002 --transport="tcp" --iopub=9004 --f=/home/wxz/.local/share/jupyter/runtime/kernel-24810617NXGVeIwrNIi.json
info 15:40:24.862: Process Execution: cwd: ~/Program/python/toolkit/plot
cwd: ~/Program/python/toolkit/plot
info 15:40:24.898: Registering dummy command feature
info 15:40:24.999: ipykernel version 6.13.0 for /home/wxz/Program/miniconda3/envs/seismic/bin/python
info 15:40:24.999: ipykernel location ~/Program/miniconda3/envs/seismic/lib/python3.10/site-packages/ipykernel/__init__.py for /home/wxz/Program/miniconda3/envs/seismic/bin/python
warn 15:40:25.350: StdErr from Kernel Process /home/wxz/Program/miniconda3/envs/seismic/lib/python3.10/site-packages/traitlets/traitlets.py:2389: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5.
  warn(
/home/wxz/Program/miniconda3/envs/seismic/lib/python3.10/site-packages/traitlets/traitlets.py:2343: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'c259473e-1551-4ecb-9653-510a6abc7686' instead of 'b"c259473e-1551-4ecb-9653-510a6abc7686"'.
  warn(

info 15:40:25.357: Kernel Output: NOTE: When using the `ipython kernel` entry point, Ctrl-C will not work.

To exit, you will have to explicitly quit this process, by either sending
"quit" from a client, or using Ctrl-\ in UNIX-like environments.

To read more about this, see https://github.com/ipython/ipython/issues/2049


To connect another client to this kernel, use:
    --existing kernel-24810617NXGVeIwrNIi.json

info 15:40:25.511: Started kernel seismic (Python 3.10.4), (Raw session started and connected)
info 15:40:25.512: Finished connecting 079787ab-3353-483b-9292-103200ab4d0c
info 15:40:25.683: Preferred Remote kernel for /home/wxz/Program/python/toolkit/plot/test.ipynb is undefined
info 15:40:25.683: Find preferred kernel for /home/wxz/Program/python/toolkit/plot/test.ipynb with metadata {"kernelspec":{"display_name":"Python 3.10.4 ('seismic')","language":"python","name":"python3"},"language_info":{"codemirror_mode":{"name":"ipython","version":3},"file_extension":".py","mimetype":"text/x-python","name":"python","nbconvert_exporter":"python","pygments_lexer":"ipython3","version":"3.10.4"},"orig_nbformat":4,"vscode":{"interpreter":{"hash":"7d83130797eb8105b0d72229ce3afe26e11a7f3d1d2ef83445961f78e12cdb01"}}} & preferred interpreter /home/wxz/Program/miniconda3/envs/seismic/bin/python
info 15:40:25.686: Preferred Remote kernel for /home/wxz/Program/python/toolkit/plot/test.ipynb is undefined
info 15:40:25.686: Preferred kernel .jvsc74a57bd07d83130797eb8105b0d72229ce3afe26e11a7f3d1d2ef83445961f78e12cdb01./home/wxz/Program/miniconda3/envs/seismic/python./home/wxz/Program/miniconda3/envs/seismic/python.-m#ipykernel_launcher is exact match
info 15:40:25.687: Preferred Remote kernel for /home/wxz/Program/python/toolkit/plot/test.ipynb is undefined
info 15:40:25.851: UpdateWorkingDirectoryAndPath in Kernel
info 15:40:25.851: Executing silently Code (idle) = import os\nimport sys\n%cd "/home/wxz/Program/python/toolkit/plot"\nif os.getcwd() not in sys.path:
info 15:40:26.6: Executing silently Code (completed) = import os\nimport sys\n%cd "/home/wxz/Program/python/toolkit/plot"\nif os.getcwd() not in sys.path:
info 15:40:26.6: Waiting for idle on (kernel): b1b63ded-2e8b-4179-a274-867c8b1b2369 -> idle
info 15:40:26.7: Finished waiting for idle on (kernel): b1b63ded-2e8b-4179-a274-867c8b1b2369 -> idle
info 15:40:37.876: Execute Cell 0 /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:37.877: Execute Cell 1 /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:37.877: Execute Cell 2 /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:37.877: Execute Cell 3 /home/wxz/Program/python/toolkit/plot/test.ipynb
info 15:40:38.404: Cell 0 executed with state Success
info 15:40:38.487: Cell 1 executed with state Success
info 15:40:38.574: Cell 2 executed with state Success
info 15:40:38.671: Cell 3 executed with state Success

[rchiodo]

Oh I had this setting enabled. With it disabled I can repro.

So that’s another workaround, turn on SVG output.

[DonJayamanne]

I’m running into the exact same behaviour when using Jupyter lab. Basically the output generated by Matplotlib doesn’t contain the necessary metadata to tell the front end whether to use a white background or not.

"jupyter.themeMatplotlibPlots": false,

Using the above to generate SVG images is a work around, a work around for a problem that exists in Jupyter lab as well. Jupyter Notebooks don’t have this issue as it is always presented in white (not a black them).