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A floating title bar over scrolling photos reads the brightness of whatever is behind it and flips its ink between white and near-black — as a 300ms glide, not a cut — so it is legible on a bright sky and on a dark corner alike. A BACKDROP LUMA meter shows the reading.

What it is

A floating title bar over a scrolling gallery that watches what is behind it and turns its text dark on bright photos and light on dark ones, gliding between the two as you scroll. No more unreadable white labels over a pale sky. For any page that floats controls over pictures — photo viewers, product galleries, travel and real-estate apps, magazine layouts.

Full library — live sample, numbers, prompt and source — is for clients. I have the password

Seen in

@叨叨AI (Douyin) · 第 8 集「8 个高级交互提升 App 和小程序的质感差别」· 07 跟着背景换黑白 Auto Contrast