1.1.4

• fix the result bounding box having extra one pixel border
• refactor: add BoundingBox class to store left, top, right, bottom position

1.1.2

• Add Width and Height properties
• Add tempate str placeholder description in readme

1.1.1

• add spritesheet combobox index into settings file
• dont show anything when folder or image files not found instead of
  throwing errors
• remove local settings file

1.1.0

save user settings into json file
change app title to Sprite Extractor
add check button to auto copy template string to clipboard
bind some widgets to variables instead of get/set directly

Initial Release

1.0.0

add template string to populate sprite bbox value into