On line guide/help

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Opacity

Set the default transparency factor

The transparency factor is used by some graphics (only some support it) so that a graphic printed under another graphic is visible if the one in front has an opacity factor lower than 1.
For this element, you can set a numeric value (float) between 0 (completely transparent) and 1 (completely opaque). For example, setting a value of 0.5 results in 50% transparency.
The elements that support it are:

• rectangles
• circles
• text
• images
• borders
• rectangle and text backgrounds