Atticus shows this in the smallest of ways, such as with the family's ornery old neighbor, Mrs. Dubose, who makes a habit of taunting Jem and Scout when they walk by her house. Just hold your head high and be a gentleman, Atticus advises Jem.
As light continues to move though the atmosphere, yellow wavelengths are scattered leaving orange wavelengths. Further scattering of orange wavelengths leaves red as the predominate color of sunlight. Therefore, near sunrise and sunset, a cloud's color is what sunlight color it receives after Rayleigh scattering.
Since light undergoes multiple scattering between numerous water droplets or ice crystals in all direction (Figure 1) and they are weakly absorbing to visible light of all wavelengths, the scattered light of all wavelengths constitutes the white color of clouds (Figure 2) that we observe.