Stop using bold text everywhere

Respect the user's default terminal settings.

base/REPL.jl

@@ -609,7 +609,7 @@ function history_reset_state(hist::REPLHistoryProvider)
 end
 LineEdit.reset_state(hist::REPLHistoryProvider) = history_reset_state(hist)
 
-const julia_green = "\033[1m\033[32m"
+const julia_green = "\033[0m\033[32m"
 
 function return_callback(s)
     ast = Base.syntax_deprecation_warnings(false) do

base/client.jl

@@ -4,14 +4,14 @@
 ##             and REPL
 
 const text_colors = AnyDict(
-    :black   => "\033[1m\033[30m",
-    :red     => "\033[1m\033[31m",
-    :green   => "\033[1m\033[32m",
-    :yellow  => "\033[1m\033[33m",
-    :blue    => "\033[1m\033[34m",
-    :magenta => "\033[1m\033[35m",
-    :cyan    => "\033[1m\033[36m",
-    :white   => "\033[1m\033[37m",
+    :black   => "\033[30m",
+    :red     => "\033[31m",
+    :green   => "\033[32m",
+    :yellow  => "\033[33m",
+    :blue    => "\033[34m",
+    :magenta => "\033[35m",
+    :cyan    => "\033[36m",
+    :white   => "\033[37m",
     :normal  => "\033[0m",
     :bold    => "\033[1m",
 )
@@ -37,13 +37,8 @@ text_colors
 have_color = false
 default_color_warn = :red
 default_color_info = :cyan
-if is_windows()
-    default_color_input = :normal
-    default_color_answer = :normal
-else
-    default_color_input = :bold
-    default_color_answer = :bold
-end
+default_color_input = :normal
+default_color_answer = :normal
 color_normal = text_colors[:normal]
 
 function repl_color(key, default)

base/version.jl

@@ -245,7 +245,7 @@ function banner(io::IO = STDOUT)
     commit_date = GIT_VERSION_INFO.date_string != "" ? " ($(GIT_VERSION_INFO.date_string))": ""
 
     if have_color
-        tx = "\033[0m\033[1m" # text
+        tx = "\033[0m" # text
         jl = "\033[0m\033[1m" # julia
         d1 = "\033[34m" # first dot
         d2 = "\033[31m" # second dot