red               161 core/ngx_rbtree.c     ngx_uint_t           red;
red               200 core/ngx_rbtree.c     red = ngx_rbt_is_red(subst);
red               253 core/ngx_rbtree.c     if (red) {
red               728 http/modules/ngx_http_image_filter_module.c                                    red, green, blue, t;
red               763 http/modules/ngx_http_image_filter_module.c             red = gdImageRed(src, transparent);
red               773 http/modules/ngx_http_image_filter_module.c     red = 0;
red               934 http/modules/ngx_http_image_filter_module.c         gdImageColorTransparent(dst, gdImageColorExact(dst, red, green, blue));