Tweak SCons compilation messages to be more discreet

All compilation messages are now written in blue to ensure that
compiler errors and warnings stand out more. Messages were also
slightly shortened to make them easier to fit on a single line on
narrow terminals.

methods.py

@@ -454,45 +454,39 @@ def no_verbose(sys, env):
     # Colors are disabled in non-TTY environments such as pipes. This means
     # that if output is redirected to a file, it will not contain color codes
     if sys.stdout.isatty():
-        colors["cyan"] = "\033[96m"
-        colors["purple"] = "\033[95m"
-        colors["blue"] = "\033[94m"
-        colors["green"] = "\033[92m"
-        colors["yellow"] = "\033[93m"
-        colors["red"] = "\033[91m"
-        colors["end"] = "\033[0m"
+        colors["blue"] = "\033[0;94m"
+        colors["bold_blue"] = "\033[1;94m"
+        colors["reset"] = "\033[0m"
     else:
-        colors["cyan"] = ""
-        colors["purple"] = ""
         colors["blue"] = ""
-        colors["green"] = ""
-        colors["yellow"] = ""
-        colors["red"] = ""
-        colors["end"] = ""
+        colors["bold_blue"] = ""
+        colors["reset"] = ""
 
-    compile_source_message = "{}Compiling {}==> {}$SOURCE{}".format(
-        colors["blue"], colors["purple"], colors["yellow"], colors["end"]
+    # There is a space before "..." to ensure that source file names can be
+    # Ctrl + clicked in the VS Code terminal.
+    compile_source_message = "{}Compiling {}$SOURCE{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
-    java_compile_source_message = "{}Compiling {}==> {}$SOURCE{}".format(
-        colors["blue"], colors["purple"], colors["yellow"], colors["end"]
+    java_compile_source_message = "{}Compiling {}$SOURCE{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
-    compile_shared_source_message = "{}Compiling shared {}==> {}$SOURCE{}".format(
-        colors["blue"], colors["purple"], colors["yellow"], colors["end"]
+    compile_shared_source_message = "{}Compiling shared {}$SOURCE{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
-    link_program_message = "{}Linking Program        {}==> {}$TARGET{}".format(
-        colors["red"], colors["purple"], colors["yellow"], colors["end"]
+    link_program_message = "{}Linking Program {}$TARGET{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
-    link_library_message = "{}Linking Static Library {}==> {}$TARGET{}".format(
-        colors["red"], colors["purple"], colors["yellow"], colors["end"]
+    link_library_message = "{}Linking Static Library {}$TARGET{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
-    ranlib_library_message = "{}Ranlib Library         {}==> {}$TARGET{}".format(
-        colors["red"], colors["purple"], colors["yellow"], colors["end"]
+    ranlib_library_message = "{}Ranlib Library {}$TARGET{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
-    link_shared_library_message = "{}Linking Shared Library {}==> {}$TARGET{}".format(
-        colors["red"], colors["purple"], colors["yellow"], colors["end"]
+    link_shared_library_message = "{}Linking Shared Library {}$TARGET{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
-    java_library_message = "{}Creating Java Archive  {}==> {}$TARGET{}".format(
-        colors["red"], colors["purple"], colors["yellow"], colors["end"]
+    java_library_message = "{}Creating Java Archive {}$TARGET{} ...{}".format(
+        colors["blue"], colors["bold_blue"], colors["blue"], colors["reset"]
     )
 
     env.Append(CXXCOMSTR=[compile_source_message])