transparency in icon image. Background color for label. - Githubissues

adafruit / Adafruit_CircuitPython_DisplayIO_Layout

A Circuitpython helper library for display element layout using displayio.

MIT License

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transparency in icon image. Background color for label. #68

Closed FoamyGuy closed 2 years ago

FoamyGuy commented 2 years ago

This adds two new features to the IconWidget both exposed as arguments to the constructor

label_background which can be set to a hex color i.e. 0x888888 and will get set as the color in the background of the icon label.
transparency_index which can be set to an integer index within the palette of the icon bmp image. If set this will call make_transparent() on the given index to make it not get drawn on the display.

Both of these new features are used in the PyPortal Busy Simulator app that I am working on a guide for.

FoamyGuy commented 2 years ago

Initially this failed CI due to sphinx not being able to find BDF class. In the latest commit I added bitmap_font library to requirements.txt in order to resolve that and make it passing CI.