The style:use-window-font-color attribute determines whether the font color is set automatically, depending on the background color of the text. With a dark background color, the font color is white; with a light background color, a dark font color is used. The definition of when a background color is dark or light and the choice of the font color for a light background color are implementation-defined.

The defined values for the style:use-window-font-color attribute are:

• false: the font color is specified by the fo:color attribute.
• true: the font color depends on the text background color and is automatically set by the consumer. A fo:color attribute is ignored in this case.

Note: In many applications, the user can choose between a "dark mode" and a "light mode". The "dark mode" affects not only toolbars, but also the document background. The value true of the attribute style:use-window-font-color allows applications to automatically adjust the font color so that the text is easy to read in any mode.

The style:use-window-font-color attribute determines whether or not the font color is set automatically according to the background color of the text.

The defined values for the style:use-window-font-color attribute are:

• false: the font color is specified by the fo:color attribute.
• true: the font color depends on the text background color and is automatically set by the consumer. The choicer of font color and how it is chosen are implementation-dependent. A fo:color attribute is ignored in this case.

Note: In many applications, the user can choose between a "dark mode" and a "light mode". The "dark mode" affects not only toolbars, but also the document background. The value true of the attribute style:use-window-font-color allows applications to automatically adjust the font color so that the text is easy to read in any mode.