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-rw-r--r--lib/Spreadsheet/ParseXLSX.pm3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Spreadsheet/ParseXLSX.pm b/lib/Spreadsheet/ParseXLSX.pm
index 9a41518..1b2ddda 100644
--- a/lib/Spreadsheet/ParseXLSX.pm
+++ b/lib/Spreadsheet/ParseXLSX.pm
@@ -725,7 +725,8 @@ also allowed to specify their color directly rather than going through the
color table. In order to avoid confusion, I normalize all color values in
Spreadsheet::ParseXLSX to their string RGB format (C<"#0088ff">). This affects
the C<Fill>, C<BdrColor>, and C<BdrDiag> properties of formats, and the
-C<Color> property of fonts.
+C<Color> property of fonts. Note that the default color is represented by
+C<undef> (the same thing that C<ColorIdxToRGB> would return).
=item Formulas