How to add gradient colors in AE

Quick answer：

To add gradient colors in After Effects (AE), follow these steps: 1. Create a solid layer by clicking 'Layer' > 'New' > 'Solid'. 2. Select the solid layer and go to 'Effect' > 'Generate' > 'Gradient'. 3. In the Effects Control Panel, adjust the gradient colors by clicking on the gradient bar and selecting colors. 4. You can also customize the gradient's direction and position. Gradient colors can be used for creating smooth transitions or color effects in animations.