Center

Select Edit | Deselect All to make sure nothing is active on the stage.

In the timeline, click the New Layer icon to create a new layer. Double-click the layer and change its name to center. Drag the center layer to the top of the layer list.

Referring to the timeline, the center of the flower should appear at frame 10 of the movie and be completely "grown" at frame 20. One difference in this tween from the previous tweens applied to the right and left leaves of the flower is that the center also changes from green to orange as it grows. We will use the Tint option to achieve this effect.

Select the center layer and highlight frame 10. Select Insert | Keyframe from the menu. You should see a blank keyframe appear in frame 10.

Drag a copy of the center graphic from the library to the stage. The keyframe dot in frame 10 should now be filled, indicating that the frame contains a graphic.

You can use the Free Transform tool or the Property Inspector to decrease the size of the center graphic.

Highlight frame 20 of the center layer's timeline. Select Insert | Keyframe from the menu. The center from frame 10 is now copied to frame 20.

With frame 20 highlighted, resize the center so it's larger. Hold the shift key to constrain it to a perfect circle. Once you've resized it, you may need to move it to fit at the top of the stem.

In the Property Inspector select Tint from the Color drop-down menu. Choose orange from the color palette, and set the slider to 100%. The center should now be orange.

To make the center appear to grow and change color, we can add a motion tween between frame 10 and frame 20.

In the center layer, highlight frame 10. Note that the center graphic in frame 10 is still green (and also still small). In the Property Inspector, select Motion from the Tween drop-down menu.

Press the Enter key or select Control | Test Movie to play the tween.

The result should look like this:

And play like this: