Envision a logo for a yoga app, embodying the concepts of serenity, mindfulness, and peace. The logo should be simple yet meaningful, perhaps incorporating a lotus flower or a yoga pose. The color palette should be soft and calming, with hues of lavender, soft blues, and gentle greens. The image should be captured with a Nikon D850 DSLR camera, using a 50mm f/1.8 lens to ensure sharpness and clarity. The lighting should be soft and diffused, mimicking the gentle light of early morning. The composition should be centered, with the logo taking the main focus. The camera settings should be set to an aperture of f/8, ISO 100, and a shutter speed of 1/125 to capture the logo in perfect detail. In post-processing, apply a slight vignette to draw the eye towards the center of the image.