code: final changes in lab 3

svg.cpp

@@ -9,7 +9,7 @@ void svg_text(double left, double baseline, string text) {
     cout << "<text x='" << left << "' y='" << baseline << "'>" << text << "</text>";
 }
 
-void svg_rect(double x, double y, double width, double height, string stroke = "black", string fill = "black") {
+void svg_rect(double x, double y, double width, double height, string stroke, string fill) {
     cout << "<rect x='" << x << "' y='" << y << "' width='" << width << "' height='" << height << "' fill='" << fill << "' stroke='" << stroke << "' />\n";
 }
 

unittest.cpp

@@ -48,3 +48,4 @@ TEST_CASE("Invalid color with spaces") {
 
 TEST_CASE("Valid color not starting with #") {
     CHECK(check_color("FFFFFF") == "FFFFFF");
+}