fake brightness adjust (#1845)

* temp

* temp - 1

* next step note

* fix circuit dependency (to fix:can't read p.mem)

* fix circuit dependency (to fix:can't read p.mem)

* notes

* bitmap

* bitmap

* remove my stupid forward declearation

* clean up

* clean up

* level control

* clean up

* clean up

* clean up

* clean up

* format

* format

* format

* format

* format

* fix for comment advices

* fix for comment advices

* fix display issue in notepad app

* slightly increase performance...

* temp for grey_scale and high_constrast

* format

* note for cache implement

* fix for comment request

* fix for comment request

.gitignore

@@ -55,7 +55,7 @@ CMakeFiles/
 # Debugging
 .gdbinit*
 
-# Editor/IDE files
+# Editor/ IDE files
 *.sublime-project
 *.sublime-workspace
 .vscode
@@ -68,8 +68,9 @@ CMakeFiles/
 .DS_Store
 /firmware/CMakeCache.txt
 
-# Python env
+# Python env/ venv
 env/
+venv/
 
 # Other
 *.bak