Greyscale rendering is deliberate. Gupta et al. (2023, “GlyphNet”) found that greyscale outperforms colour for glyph comparison because extreme contrast preserves edge detail through resize. No image augmentation either: flipping or rotating characters creates unrealistic glyphs.
If you try to route from a map of France updated in May with a map of Germany updated in April, HH-Routing may not be compatible across the border. You would need to update all relevant maps to the same version.
，详情可参考搜狗输入法2026
Stories and lessons learned from an impossibly large community modding project.
function createGzipCompressor() {