Start the Flash program. Click "Flash File (ActionScript 3.0)" from the splash window to create a new file for your Flash animation project.
Click the "Designer" option from the Workspace menu within the Window menu to display the Flash drawing tools and color swatch panels. Click "Timeline" in the Window menu to display the timeline panel.
Press the "O" key on your keyboard to activate the Flash Oval tool. Position your mouse cursor over the stage and click and drag your mouse to draw an oval. Click a color in the color swatch panel to change the color of the oval.
Press and release the "." (period) key repeatedly to move to Frame 50 on the timeline. Click in Frame 50, right-mouse and select "Insert Keyframe" on the context menu.
Click in Frame 49. Click on a different color in the color swatch panel to change the color of the oval again (the color to which it will morph).
Click in any frame between 2 and 49, then right-mouse and select "Create Shape Tween" from the context menu.
Click "Test Movie" from the Control menu to play the color morphing Flash movie. Observe that the color of the oval changes in a gradual or color gradient type fashion from the initial color of the oval (at Frame 1) to the color selected for Frame 50.