The design effect drawing of a second bedroom typically includes color schemes that are harmonious and reflect the personal style or theme of the room. These colors are chosen based on factors such as the room's size, natural lighting, and the intended use of the space. Common considerations include the use of neutral tones for a more spacious feel or bold colors to make the room stand out. The color scheme may also be influenced by the overall design style of the house, whether it's modern, traditional, or something in between.