svg: незначительные изменения

svg.cpp

@@ -53,7 +53,7 @@ show_histogram_svg(const vector<double>& bins) {
     for (double bin : bins) {
         const double bin_width = MAX_WIDTH * ((BLOCK_WIDTH * bin) / max_count);
         svg_text(TEXT_LEFT, top + TEXT_BASELINE, to_string(bin));
-        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "blue", "#aaffaa");
+        svg_rect(TEXT_WIDTH, top, bin_width, BIN_HEIGHT, "green", "yellow");
         top += BIN_HEIGHT;
     }
     svg_end();