How to apply theme to jupyter lab
UPDATE 02/03/2018
Now this option is already built in in the settings menu!
Recently this issue was closed on the GitHub, and finally it is possible to edit settings of the jupyter lab. Hurray!
The procedure is described in this pull request.
Just update your jupyter-lab (now it is version 0.27.0) and go to File - Settings, then select Theme tab. And type your theme name in the User Overrides and press the check-mark at the right of the string. I tried several, but only "theme": "JupyterLab Dark" seems to work. Enough for me.
I really appreciate the work the jupyter team is doing. Thank you all!
Change the Theme in Jupyter Notebook?
This is easy to do using the jupyter-themes
package by Kyle Dunovan. You may be able to install it using conda
. Otherwise, you will need to use pip
.
Install it with conda:
conda install -c conda-forge jupyterthemes
or pip:
pip install jupyterthemes
You can get the list of available themes with:
jt -l
So change your theme with:
jt -t theme-name
To load a theme, finally, reload the page. The docs and source code are here.
How to edit a JupyterLab theme
To edit JupypterLab themes you need to make changes to the file variables.css
which is located in jupyterlab/packages/[THEME NAME]/style/
You can inspect the element of the JupyterLab that you'd like to change to find out its class. I used Chrome DevTools ctrl+shift+i
and click on various div classes until I found the one I wanted to alter.
Once you have the name of the div class you'd like to customize, add the changes to the variables.css
file. Here's what I changed and the result.
.jp-RenderedImage {
background-color: #A4A4A4
}
You can use this gist (where the code in the first cell comes from) created by one of the JupyterLab contributors to experiment with changes you made to the variables.css
file.
How to edit jupyter lab theme
we are using version 0.35.x ...
the following steps worked for me ... it will create a clone of the light theme, would install it in jupyter lab and you would be able to select that from settings menu. you can customize this theme, build it and have the effect in jupyter lab
- install miniconda from here https://docs.conda.io/en/latest/miniconda.html (chose python3.7 one)
- open Anaconda Terminal, [in windows goto search type Anaconda, select the terminal]
- then run this
conda create -n jupyterlab-ext -c conda-forge --override-channels nodejs jupyterlab cookiecutter git
- clone jupyterlab from here https://github.com/jupyterlab/jupyterlab.git
- switch branch with
git checkout 0.35.x
- then
jlpm install
jlpm build
npm run create:theme
- copy the theme folder to your chosen local theme folder for extension development. Replace tsconfig.json content with the following
{ "compilerOptions":
{ "declaration": true,
"lib": ["es2015", "dom"],
"module": "commonjs",
"moduleResolution": "node",
"noEmitOnError": true,
"noUnusedLocals": true,
"outDir": "lib",
"rootDir": "src",
"strict": true,
"strictNullChecks": false,
"target": "es2015",
"types": []
},
"include": ["src/*"]
}
[created by the steps here https://jupyterlab.readthedocs.io/en/stable/developer/xkcd_extension_tutorial.html#xkcd-extension-tutorial]
inside the theme folder ..
- run the following commands
jlpm install
,jlpm run build
,jlpm run build:webpack
- open another conda terminal, there go to repo folder and run
conda activate jupyterlab-ext then jupyter labextension install .
- in a conda terminal
conda activate jupyterlab-ext
then,jupyter lab --watch
For version 1.0 , this cookie cutter could be used ... https://github.com/jupyterlab/theme-cookiecutter
How do I launch jupyter lab with the dark theme enabled by default?
Put this in ~/.jupyterlab/user-settings/@jupyterlab/apputils-extension/themes.jupyterlab-settings
{
"theme": "JupyerLab Dark"
}
In the Dockerfile this might look like:
RUN mkdir -p ~/.jupyterlab/user-settings/@jupyterlab/apputils-extension/ && \
echo '{ "theme":"JupyterLab Dark" }' > themes.jupyterlab-settings
How to change the color of bold texts by changing index.css in Jupyter Lab?
I made some changes recently on my themes, so, according to my experience:
The file you must to modify is the one inside the "share" folder:
share\jupyter\lab\themes\@jupyterlab\theme-light-extension\index.css
The only bold texts I found on my code mirror are marked as "Keywords" (i.e.
import
,for
,in
,try
,def
, etc)
If you want to change these bold text, you must to modify inside your index.css
file the --jp-mirror-editor-keyword-color
variable.
How to bring the colab dark theme to Jupyter Notebook
First, you have to install Jupyter Themes:
pip install jupyterthemes
Then, i think Colab uses the theme "onedork", so just set it using:
jt -t onedork
For some more info about Jupyter Themes, you can check https://github.com/dunovank/jupyter-themes
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