[Kaz219]

I found the shadow inspector (thought it was only for shapes), where I can set the color. Unfortunately, it doesn't help. The white shadow is not casted on the line, so the text still look like striked through...

Outlined fonts are really not lisible so I give up and use a white background with 80% of opacity for the text. Still not great, since the bakcground is much too big and sometimes overlap with other objects. Most of all when the text is vertical.