Settings
The M Chart settings page is located at Chart → Settings in the WordPress admin.
General
Library
Select the active charting library. Chart.js is the default. Highcharts is available if the M Chart Highcharts Library plugin is installed.
Performance
A performance setting that allows you to either turn off image generation or additionally turn off instant previews.
Warning
Both of the non Default options disable image generation which is required for the show="image" shortcode option and for the automatic image fallback in RSS/AMP contexts.
Image Multiplier
Controls the pixel density multiplier used when generating chart images. Higher values produce sharper images on high-DPI screens at the cost of larger file sizes. Default is 2.
iFrame Embedding
Causes charts to be embedded via an iFrame (needs to be enabled to use the share shortcode option) and can also allow charts to more reliably work in some WordPress themes.
Chart.js
These settings apply only when Chart.js is the active library.
Theme
The default color theme applied to all charts. Individual charts can override this setting. See Themes for available options and how to create custom themes.
Number Format Locale
The locale used for number formatting in chart tooltips (e.g. en-US, de-DE, fr-FR). Controls decimal separators and thousands grouping. Defaults to en-US.
CSV
Default Delimiter
The delimiter used when importing CSV files. Defaults to comma (,). Can be overridden per-import on the chart edit screen.
Highcharts
These settings appear only when Highcharts is the active library. See the Highcharts section for details.