How to adjust line height in code cells?

JupyterLab
,
1

I have tried customize it via ~/.jupyter/custom/custom.css, but it’s no effect in JupyterLab.
I try this custom.css and many many other variation:

.jp-ThemedContainer.jp-CodeMirror-editor .CodeMirror-line {
    line-height: 0.8 !important; 
}

or

div.jp-ThemedContainer.cm-cell.cm-editor {
    line-height: 0.8; /* или любое другое значение */
}

or

:root {
     --jp-code-line-height: 0.8;
}

Example piece of code for custom.css from docs (interface_customization.html#jupyter-styling) works well.

I also try edit variable --jp-code-line-height at index.css in C:\ProgramData\anaconda3\envs\<my_conda_env_name>\share\jupyter\lab\themes\@jupyterlab\theme-light-extension, but it’s no effect. However editing --jp-content-line-height at index.css take effect on output text under cells.

I also try some extensions for this purpose.
Extension jupyterlab-fonts can properly adjust fonts and line height only for output cells. Adjusting line height for code has no effect.

I suppose changings described here affect to jupyterlab-fonts and other examples of custom.css, which I was able to find on GitHub.

I would be grateful for any help!