[SOLVED] How to change the background of mark labels?

[CM630]

In all examples (i.e. http://wiki.freepascal.org/TAChart_Tutorial:_ListChartSource,_Logarithmic_Axis,_Fitting) and demos the backgroung of pointers is yellow. This seems to be the default value.
How to remove the background of the pointers (both the background and the border of the box)?
It would be useful to know how to change the background from yellow to sth. else.

[Ask]

backgroung of pointers is yellow

Pointers are red round dots. You probably mean labels.

Label background can be changed with LabelBrush property,
label border can be changed with Frame property.

See http://wiki.lazarus.freepascal.org/TAChart_documentation#Mark_labels

[CM630]

If I get it right, the exact name should be "Mark labels"?

So for the frame I used ls.marks.frame.visible:=false;
To remove the background I used ls.marks.labelbrush:= Chart1.backcolor; It worked, because the background area is transparent (by default).
To change the font color- ls.marks.labelfont.color:= somecolor;

[Ask]

If I get it right, the exact name should be "Mark labels"?

Yes.

To remove the background I used ls.marks.labelbrush:= Chart1.backcolor;

It is better to use ls.Marks.LabelBrush.Style := bsClear