Difficulty adjusting font sizes on mixed PolarArea/Radar Chart in V.4

Hi, I have a chart which overlays a radar and polarArea chart, sandboxed here.

I cant seem to modify any font options in the sandbox tool. I would just like to increase font size.

I have tried:

Any ideas?

Kind regards,


Hi @Pflute,

In Chart.js v3+, font attributes are typically of the form options.scale.ticks.font.size, options.scale.ticks.font.weight, etc.

Here’s your updated example

See also the Chart.js docs

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I don’t know how I missed that. The section of help where I was so focussed on even had the V3+ tabbed section, and I just couldnt see it.

Thankyou Ian.