Hi @notsolowki you can change the size of modebar buttons by changing their css property font-size (see the attached screenshot, css properties are visible at the bottom-left corner). You can do this either from a notebook engine (right-click on modebar button and “Inspect element”) or by adding a css file to your Dash application, to your jupyter configuration directory (https://byte7.github.io/blog/Cool-Jupyter/), etc.
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