The properties dialog for objects is different for each object type. If the object is a brush, you can choose a color that shall be displayed transparently, or you can choose to load the transparency information from the image file (for palette-based images), or use the alpha channel of the brush as the transparent area. Furthermore, you can set whether or not this brush shall be scaled and rotated with enabled anti-aliasing.
If the object is a rectangle, ellipse, elliptic arc, auto form or polygon, you can configure the fill style for the object. Possible fill styles are: Single color, Outline, Gradient, and Pattern. If the fill style is set to "Pattern", you can also specify the starting offset for the texture. Additionally, you can choose to have the object drawn with anti-aliasing.
If the object is an rectangle, you can configure the rounding level for its corners.
If the object is an elliptic arc, you can configure the start and end angles for the arc, as well as whether or not the angles should be in clockwise direction.
If the object is a line, you can configure the line's thickness and whether or not it shall be drawn with anti-aliasing. Additionally, you can add a single or a double arrowhead to the line. This is very useful for creating diagrams.
If your object is a text object, the text dialog will be opened. See Text dialog for details.
If your object is an animation, the anim dialog will be opened. See Anim dialog for details.
If your object is a video, the video dialog will be opened. See Video dialog for details.
If your object is an action object, the action object dialog will be opened. See Action object dialog for details.