1. First, open the PS software, then hold down the ctrl key+mouse and click on the text layer that has been dug up to enter the selection state.
2. Then change the foreground color and background color to the desired color, and then press alt+delete or ctrl+delete to fill the color of the selected text.
3. Or select the selected text layer and click the "Blending Options" button below the layer panel to open the settings.
4. Select one of "Color Overlay, Gradient Overlay and Pattern Overlay" in the dialog box, modify the corresponding parameters on the right, and fill in the color styles with different effects.