The root/core graphics primitive functions extracted from the Adafruit GFX Library. Originally created by [Jean-Marc Zingg] (https://github.com/ZinggJM/GFX_Root).
- Fixed: adafruit/Adafruit-GFX-Library#327 (comment)
- Implement FastLED CRGB color value (24bit) support for all graphics functions in addition to legacy 16-bit 565 colors.
- reduced virtual methods to preserve code space
- class GFX has no transaction support for minimal code space use
- extract from Adafruit GFX Library version 1.8.2