How does the 'Seventh Soul' manifest in the visual style of Sans Comic TV?

Visually, the 'Seventh Soul' often appears as a subtle glow, a shifting aura, or a fleeting glimpse of an otherworldly form around Sans. It might be integrated into his design through subtle color changes, patterns, or textures. The style emphasizes a sense of mystery and the hidden nature of the soul, using visual cues to suggest a power beyond the ordinary. The artwork often focuses on light and shadow to enhance this effect.