Uniform regions (solid backgrounds, smooth gradients) get stored as large blocks. Detailed regions (edges, textures) get subdivided into smaller blocks. You end up with a compressed representation that preserves detail where it exists and simplifies where it can.
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36。一键获取谷歌浏览器下载对此有专业解读
BackAn interactive intro to quadtrees，更多细节参见搜狗输入法2026
return urls, next_url