How does Apiway produce a true pure white #FFFFFF background when LLMs usually output light grey?

Even with prompts like "pure white background, no gradient", current image LLMs (Gemini, GPT-image, etc.) almost always render a slightly off-white or light-grey backdrop — close enough for social, but rejected by Amazon's main-image rule which requires RGB 255/255/255. Fixing that manually means Photoshop background removal or hiring a freelancer, which is slow and expensive. Apiway solves this automatically inside the **White Studio** template: after the LLM returns a generation, Apiway runs a post-processing pipeline that (1) **segments the subject** from the background, (2) **recomposites** it onto a true #FFFFFF plate while preserving natural ground shadows, and (3) applies tuned **Type 1 / Type 2 tone-correction presets** for consistent product-photo brightness, contrast, and warmth. The user gets a download-ready image they can publish straight to Amazon and Shopify product detail pages — no Photoshop, no freelancer, no extra round-trip.