Unnecessary scroll bars on plots and images

[ianholst]

When you use ipywidgets to interact with a matplotlib plot, it shows these black scrollbars even when there is no need to scroll:

This is due to this line of CSS, which specifies overflow: scroll on that image element:

vscode-notebook-renderers/src/client/render.tsx

Line 85 in 06da536

const divStyle: Record<string, string | number> = { overflow: 'scroll', position: 'relative' }; // `overflow:scroll` is the default style used by Jupyter lab.

This should be changed to overflow: auto. Not sure what that comment in the code about Jupyterlab means since these scrollbars do not appear in Jupyterlab.

[ianholst]

I should add that actually these scrollbars appear on all plots (with and without ipywidgets) and images (through PIL). It's just that they are more obviously visible with ipywidgets because of the white background. I don't see any reason to have overflow: scroll on all of them.