From Xojo Documentation
The system text color.
result = TextColor
|result||Color||The color used for drawing text.|
This value is useful when you are using Canvas controls to create custom controls. When drawing objects, use this color as the ForeColor value when drawing text.
The DisabledTextColor returns the system color for drawing disabled text.
This value can be changed by the user or when the system switches between light/dark modes, so you should use this method in the Paint event handler rather than storing the value.