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When using a dark theme, we recommend changing the following CSS tags to a light colour. You can find these on Dashboard Configuration>Themes. Select the theme that you want to edit on the left-hand side and then click Style>Charts.
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In addition to the recommendations above, you may also want to think about changing the colour of .pi-style__chart-panel__chart-title and .pi-style__chart-panel__chart-subtitle which you can find in Dashboard Configuration>Themes>Chart Panel - this will ensure that the colour of your chart titles and subtitles are displayed correctly in the dashboard.
Dark themes and Speedometers
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