Changes:

Adding a inverted color logo, updated the ini to reflect init screen, shutdown screen, and main screen rotation/color options;
updated the init_scr file to read and accept input from the ini file;
added logic to the shutdown_scr file to use the regular or inverted color graghic, based on the setting of the text(forground);
All this exposed 2 bugs in the upgrade file:
  was not putting the graphic files in the correct subdirectory;
  noted that the upgrade utility was overwriting the config (ini) file.  added logic to check for existance as apposed to match the file with the default.

init_scr

@@ -4,11 +4,19 @@
 from PIL import Image, ImageDraw, ImageFont  # Font handeling
 from waveshare_epd import epd2in13_V2
 import os
+import configparser #to handle the config file.
 from ser2bt_lib import line_pos, center_text
-#user-changable settings.
-screen_rotate = 180
-foreground = 0
-background = 255
+#import configuration file:
+#Read ser2bt_config.ini file
+config_obj = configparser.ConfigParser()
+config_obj.read("/etc/ser2bt_config.ini")
+screen = config_obj["screen"]
+init_screen = config_obj["init_screen"]
+
+# parameters to use the keys from the ser2bt_config.ini
+screen_rotate = int(screen["screen_rotate"])
+foreground = int(screen["foreground"])
+background = int(screen["background"])
 
 # Variable decleration
 epd = epd2in13_V2.EPD()

ser2bt_config.ini

@@ -7,6 +7,11 @@ screen_rotate=0
 foreground=0
 background=255
 
+[init_screen]
+screen_rotate=0
+foreground=0
+background=255
+
 [shutdown_screen]
 screen_rotate=0
 foreground=0

shutdown_scr

@@ -37,7 +37,10 @@ f_top_line_font16 = ImageFont.truetype(roboto_font_dir+'Roboto-Medium.ttf', 16)
 f_title_font18 = ImageFont.truetype(roboto_font_dir+'Roboto-Bold.ttf', 18)
 f_title_font24 = ImageFont.truetype(roboto_font_dir+'Roboto-Bold.ttf', 24)
 
-bmp = Image.open(os.path.join(picdir, 'logo.bmp'))
+if foreground == 0:
+    bmp = Image.open(os.path.join(picdir, 'logo.bmp'))
+else:
+    bmp = Image.open(os.path.join(picdir, 'logo_inverted.bmp'))
 exit_image = Image.new('1', (epd.height, epd.width), int(background))  #clear the frame
 exit_draw = ImageDraw.Draw(exit_image)
 left_margin = 1 #Left margin.

upgrade

@@ -56,9 +56,9 @@ wavesh_bin_files=(ser2bt_status init_scr shutdown_scr ser2bt_lib.py)
 full_bin_files=( "${base_bin_files[@]}")
 pisugar2_bin_files=(button_detect bat_mon)
 ups_lite_bin_files=(bat_mon)
-base_lib_files=(format.sh)
-ser2bt_lib_files=(logo.bmp)
-full_lib_files=( "${base_lib_files[@]}")
+base_lib_files=("format.sh")
+ser2bt_lib_files=("logo.bmp" "logo_inverted.bmp")
+full_lib_files=( "${base_lib_files[@]}") #The script will determine what should get added to base_lib_files later on:
 etc_files=(ser2bt_bridge.screenrc)
 wavesh_etc_files=(ser2bt_config.ini)
 base_service_files=(rfcomm.service)
@@ -292,7 +292,7 @@ fi
 
 if [ "${upgrade_path}" = "enhanced" ] ; then
 	bin_files=(${base_bin_files[@]})
-	lib_files=(${enhanc_lib_files[@]})
+	lib_files=(${base_lib_files[@]}) #The script will determine what should get added to base_lib_files later on:
 	service_files=(${enhanc_service_files[@]})
 	service_assoc=(${enhanc_service_assoc[@]})
 	config_txt_addons=(${enhanc_config_txt_addons[@]})
@@ -304,7 +304,7 @@ fi
 
 if [ "${upgrade_path}" = "full" ] ; then
 	bin_files=(${full_bin_files[@]})
-	lib_files=(${base_lib_files[@]})
+	lib_files=(${base_lib_files[@]}) #The script will determine what should get added to base_lib_files later on:
 	service_files=(${full_service_files[@]})
 	service_assoc=(${full_service_assoc[@]})
 	config_txt_addons=(${full_config_txt_addons[@]})
@@ -373,7 +373,7 @@ if [ "${e_ink}" = "True" ] && [ "${upgrade_path}" = "full" ] ; then
 	config_txt_values=("${config_txt_values[@]}" "${wavesh_config_txt_values[@]}")
 	boot_search=("${boot_search[@]}" "${wavesh_boot_search[@]}")
 	bin_files=("${bin_files[@]}" "${wavesh_bin_files[@]}")
-	lib_files=("${lib_files[@]}" "${ser21bt_lib_files[@]}")
+#	lib_files=("${lib_files[@]}" "${ser2bt_lib_files[@]}")
 	etc_files=("${etc_files[@]}" "${wavesh_etc_files[@]}")
 	service_files=("${service_files[@]}" "${wavesh_service_files[@]}")
 	service_assoc=("${service_assoc[@]}" "${wavesh_service_assoc[@]}")
@@ -651,21 +651,22 @@ done
 		fi
 	done
 
-if [ "${e_ink}" = "True" ] && [ "${upgrade_path}" = "Full" ] ; then
-	printf "\nCopying files to the ${cyn}${ser2bt_lib_folder} ${nor}directory:\n"
-	for file in "${ser2bt_lib_files[@]}" ; do
-		if cmp --silent "${ser2bt_lib_folder}${file}" "${project_folder}${file}" ; then
-			printf " ${nor}Both versions of ${yel}${file} ${nor}are the same, Skipping...\n"
-		else
-			cp ${project_folder}${file} ${ser2bt_lib_folder} && printf " ${yel}${file} ${nor}copied.\n" || break
-		fi
-	done
-fi
+	if [ "${e_ink}" = "True" ] && [ "${upgrade_path}" = "full" ] ; then
+		printf "\nCopying files to the ${cyn}${ser2bt_lib_folder} ${nor}directory:\n"
+		for file in "${ser2bt_lib_files[@]}" ; do
+			if cmp --silent "${ser2bt_lib_folder}${file}" "${project_folder}${file}" ; then
+				printf " ${nor}Both versions of ${yel}${file} ${nor}are the same, Skipping...\n"
+			else
+				cp ${project_folder}${file} ${ser2bt_lib_folder} && printf " ${yel}${file} ${nor}copied.\n" || break
+			fi
+		done
+	fi
 
 	printf "\nCopying files to the ${cyn}${etc_folder} ${nor}directory:\n"
 	for file in "${etc_files[@]}" ; do
-		if cmp --silent "${etc_folder}${file}" "${project_folder}${file}" ; then
-			printf " ${nor}Both versions of ${yel}${file} ${nor}are the same, Skipping...\n"
+		if [ -e "${etc_folder}${file}" ]; then
+#		if cmp --silent "${etc_folder}${file}" "${project_folder}${file}" ; then
+			printf " ${yel}${file}${nor} already exists, Skipping...\n"
 		else
 			cp ${project_folder}${file} ${etc_folder} && printf "${yel}${file} ${nor}copied.\n" || break
 		fi