Put a link the rounding screen to return home, just in case the one

at the top left isn't obvious enough.

[git-p4: depot-paths = "//depot/solvespace/": change = 2155]

textscreens.cpp

@@ -630,6 +630,7 @@ void TextWindow::ShowTangentArc(void) {
     Printf(false, "To create a tangent arc at a point,");
     Printf(false, "select that point and then choose");
     Printf(false, "Sketch -> Tangent Arc at Point.");
+    Printf(true, "(or %Fl%Ll%fback to home screen%E)", &ScreenHome);
 }
 
 //-----------------------------------------------------------------------------

wishlist.txt

@@ -1,4 +1,5 @@
-rounding (of requests, not parametric)
+O(n*log(n)) assembly of edges into contours
+good color picker
 
 -----
 rounding, as a special group