Hand-drawn pop font is a type of font that is filled with hand-drawn lines and colors. The following are some common rules: 1. Contour law: The outline of a hand-drawn pop font usually has obvious rules, including thick lines and thin lines, straight lines and curves, etc. These contours could be drawn repeatedly to deepen and refine them to show a more realistic effect. 2. Rules of shadows and highlights: The lines of hand-drawn pop font usually have shadows and highlights. You can use the shadows and highlights to express the three-dimensional sense and texture of the font. Shadows could be darkened from dark to light while highlights could be changed from transparent to opaque. 3. Color pattern: The color of the hand-drawn pop font can usually be adjusted according to needs, including color fade, color overlap, etc. You can achieve more complex effects by stacking colors multiple times, and you can also achieve more detailed effects by controlling the ratio and brightness of the colors. 4. Rule of shape: The shape of a hand-drawn pop font can be achieved by drawing different shapes and curves, including circles, squares, and triangular shapes. These shapes could be drawn repeatedly to create a more realistic effect. 5. Rule of texture: The texture of a hand-drawn pop font can be achieved by drawing different texture and details, including the thickness of the texture, the direction of the texture, etc. The texture could be repeated multiple times to create a more realistic effect. These are some common rules of hand-drawn pop font. Through continuous practice and experimenting with different drawing methods, you can create more realistic and interesting hand-drawn pop font.