diff --git a/app/controllers/scores_controller.rb b/app/controllers/scores_controller.rb
index 034cbc3..f148c26 100644
--- a/app/controllers/scores_controller.rb
+++ b/app/controllers/scores_controller.rb
@@ -4,13 +4,14 @@ class ScoresController < ApplicationController
 
   # GET /scores
   def index
-    # TODO: my todo list is beginning
     @scores = Score.all
-    logger.debug 'this is a debug message'
-    logger.debug({ one: 1, two: 2 })
+    logger.info 'this is a normal message'
+    # logger.info({ one: 1, two: 2 })
     # logger.info 'this is an information', { four: 4, five: 5 }
     # logger.debug BigDecimal('0.0003')
-    # logger.debug 'scores are', @scores
+    logger.warn 'scores are', @scores
+    logger.error 'this is an error message'
+    logger.info 'end of normal message'
     # logger.debug @scores
     # sleep 0.5
   end
diff --git a/lib/formatters/basic_formatter.rb b/lib/formatters/basic_formatter.rb
index aa30197..e15d599 100644
--- a/lib/formatters/basic_formatter.rb
+++ b/lib/formatters/basic_formatter.rb
@@ -8,6 +8,9 @@ class BasicFormatter < SemanticLogger::Formatters::Color # rubocop:disable Metri
   NAME_MAX_SIZE = 25
   TERMINAL_PREFIX = ENV['TERMINAL_PREFIX'].to_i || 0
   CONTENT_PREFIX = '   '.freeze
+  PREFIX_RAILS_INTERNAL = '➟ '.freeze
+  PREFIX_ACTION_INTERNAL = '↪ '.freeze
+  PREFIX_BUG_INTERNAL = '↪ '.freeze
 
   RENDERED_VIEW_DURATION = 100
   COMPLETED_DURATION = RENDERED_VIEW_DURATION * 5
@@ -120,7 +123,7 @@ class BasicFormatter < SemanticLogger::Formatters::Color # rubocop:disable Metri
       log = transform_action_view_base(log)
     elsif log.name == 'Rails' && log.message
       log.message = transform_rails_message(log.message.rstrip)
-      log.level = :debug if log.message.lstrip =~ /^Processing/ || log.message.lstrip =~ /^Parameters/
+      log.level = :debug if log.message =~ /^#{PREFIX_RAILS_INTERNAL}(Processing|Parameters)/
     end
     log
   end
@@ -132,7 +135,9 @@ class BasicFormatter < SemanticLogger::Formatters::Color # rubocop:disable Metri
     when /^Started/
       two_captures_last_as_bold(message, /(^Started \w* )"(.*?)"/)
     when /^Processing/
-      "  #{two_captures_last_as_bold(message, /(^Processing by \w*#\w* as )(.*)/)}"
+      "#{PREFIX_RAILS_INTERNAL}#{two_captures_last_as_bold(message, /(^Processing by \w*#\w* as )(.*)/)}"
+    when /  Parameters/
+      "#{PREFIX_RAILS_INTERNAL}#{message.lstrip}"
     else
       message
     end
@@ -155,7 +160,7 @@ class BasicFormatter < SemanticLogger::Formatters::Color # rubocop:disable Metri
     log.level, message = transform_log_debug_lstrip(log)
     message = transform_rendered_message_with_filename(message)
     message = transform_duration_strip(message)
-    log.message = message
+    log.message = "#{PREFIX_ACTION_INTERNAL}#{message}"
     log
   end
 
@@ -169,7 +174,7 @@ class BasicFormatter < SemanticLogger::Formatters::Color # rubocop:disable Metri
   def transform_rendered_message_with_filename(message)
     md = message.match(/^Rendered( layout| collection of|) (.*?\.erb)/)
     filename = "app/views/#{md.match(2)}"
-    log.message = "  Rendered#{md.match(1)} #{filename}#{md.post_match}"
+    log.message = "Rendered#{md.match(1)} #{filename}#{md.post_match}"
   end
 
   def transform_log_debug_lstrip(log)
@@ -202,7 +207,7 @@ class BasicFormatter < SemanticLogger::Formatters::Color # rubocop:disable Metri
   def backtrace(stack)
     return "\n" unless stack.count.positive?
 
-    "\n#{before_message} #{ANSI_ERROR}↳ #{stack.join("\n#{before_message} #{ANSI_ERROR}↳ ")}#{color_map.clear}\n"
+    "\n#{before_message}#{ANSI_ERROR}#{PREFIX_BUG_INTERNAL}#{stack.join("\n#{before_message}#{ANSI_ERROR}#{PREFIX_BUG_INTERNAL}")}#{color_map.clear}\n"
   end
 
   def color_content