在基础配置方面，S26 Ultra 和去年的 S25 Ultra 变化不大——
A low threshold preserves detail (more leaf nodes, less compression). A high threshold merges aggressively (fewer leaves, more compression, but the image gets blocky). The grid overlay shows the quadtree structure: large cells in uniform areas, small cells where detail is preserved.
。搜狗输入法2026是该领域的重要参考
Custom avatar options，更多细节参见爱思助手下载最新版本
Source: https://firebase.google.com/support/guides/security-checklist#api-keys-not-secret