1.4.0

• Support for user-defined callback arguments via GEMCallbackData struct (for buttons and menu items with editable variables);
• New methods GEMItem::setCallbackVal(), GEMItem::getCallbackData(), GEMItem::getLinkedVariablePointer();
• Readme updated accordingly.

1.3.4

• Avoid using wild pointers (addressed issue #43)

1.3.3

• Added support for build flags (e.g. in PlatformIO environment) as an alternative way to configure library;
• Readme Configuration section updated accordingly.

1.3.2

• Addressing -Wwrite-strings compiler warnings;
• Readme updates;
• Adafruit GFX version Blink example fix (blinking with LED_BUILTIN removed).

1.3.1

• Addressing -Wattributes , -Wreorder, -Werror=return-type compiler warnings;
• ESP32/ESP8266 compatibility note in Readme.

1.3.0

• Support for Adafruit GFX library via GEM_adafruit_gfx class;
• Additional Example-04_Blink_Recolor sketch, based on Example-02_Blink with new setForegroundColor() and setBackgroundColor() methods (only for Adafruit GFX version);
• New GEM_ITEMS_COUNT_AUTO value for menuItemsPerScreen initialization parameter to turn on automatic calculation of number of items that will fit on the screen based on screen's height;
• Readme updates to include walkthrough guide on How to use Adafruit GFX version and updated Reference section;
• Fixed bug with GEMItem::hide() in case when the first menu item is hidden.

1.2.7

• Updated conditional inclusion of avr/dtostrf.h for SAMD boards (may fix compatibility issues with ESP32 boards);
• Readme section on platform compatibility added.

1.2.6

• GEM::setSplashDelay() and GEM_u8g2::setSplashDelay() methods to explicitly set duration of time splash screen will be visible during init() routine (setting to 0 will disable splash screen);
• Readme updated accordingly.

1.2.5

• GEMPage constructor optional exitAction parameter added: pointer to a function that will be executed when GEM_KEY_CANCEL key is pressed while being on top level menu page;
• Readme updated accordingly.

1.2.4

• GEMItem::hide(), GEMItem::show() and GEMItem::getHidden() methods to hide/show menu items;
• Readme updated accordingly.