Pie/doughnut chart global dLbls block ignores dataLabelFontFace and dataLabelFontSize

[petersantesson]

Bug Description

The global <c:dLbls> template block for pie and doughnut charts hardcodes Arial and sz="1800" instead of using the dataLabelFontFace and dataLabelFontSize options from IChartOpts.

The individual per-slice <c:dLbl> entries correctly use the options (line ~4401 in pptxgen.cjs.js):

strXml += "    <a:latin typeface=\"".concat(opts.dataLabelFontFace || 'Arial', "\"/>");

But the global/parent <c:dLbls> block (line ~4421-4422) has them hardcoded:

strXml += "          <a:defRPr sz=\"1800\" b=\"...
strXml += '            <a:solidFill><a:srgbClr val="000000"/></a:solidFill><a:latin typeface="Arial"/>';

This means the parent template block always uses Arial at 18pt regardless of what options are passed.

Version

3.12.0

Steps to Reproduce

1. Create a pie chart with dataLabelFontFace: 'Roboto' and dataLabelFontSize: 12
2. Open the generated PPTX and inspect the chart XML (ppt/charts/chartN.xml)
3. Observe that individual <c:dLbl> entries have Roboto at sz="1200", but the parent <c:dLbls> <c:txPr> has Arial at sz="1800"

Expected Behavior

The global <c:dLbls> block should use opts.dataLabelFontFace and opts.dataLabelFontSize (with fallbacks to 'Arial' and DEF_FONT_SIZE), consistent with the individual <c:dLbl> entries and with how other chart types handle this.

Suggested Fix

In makeChartType(), change the global dLbls block for pie/doughnut (around line 4421-4422 in both pptxgen.cjs.js and pptxgen.es.js):

Before:

strXml += "          <a:defRPr sz=\"1800\" b=\"".concat(opts.dataLabelFontBold ? '1' : '0', ...);
strXml += '            <a:solidFill><a:srgbClr val="000000"/></a:solidFill><a:latin typeface="Arial"/>';

After:

strXml += "          <a:defRPr sz=\"".concat(Math.round((opts.dataLabelFontSize || DEF_FONT_SIZE) * 100), "\" b=\"").concat(opts.dataLabelFontBold ? '1' : '0', ...);
strXml += '            <a:solidFill>' + createColorElement(opts.dataLabelColor || DEF_FONT_COLOR) + '</a:solidFill><a:latin typeface="' + (opts.dataLabelFontFace || 'Arial') + '"/>';

This matches the pattern used in the per-slice <c:dLbl> entries (line ~4399-4401) and in other chart types (bar, line, scatter, bubble).