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Add more roadmap notes to README

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Phillip Burgess
2021-09-06 23:09:53 -07:00
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@@ -36,6 +36,8 @@ The PRIME DIRECTIVE is to maintain backward compatibility with existing Arduino
- Additional or incompatible bitmap formats, for similar reasons. It's getting messy.
- Adding background color to custom fonts to erase prior screen contents. The ONLY acceptable methods are to clear the area with a filled rect, or (to avoid flicker) draw text into a GFXcanvas1 and copy to screen with drawBitmap() w/background color. This is on purpose and by design. We've discussed this. Glyphs can overlap.
- Scrolling, whether hardware- or software-based. Such implementations tend to rely on hardware-specific features (not universally available), read access to the screen's framebuffer (ditto) and/or the addition of virtual functions in GFX which them must be added in *every* subclass, of which there are many. The GFX API is largely "set" at this point and this is just a limitation we live with now.
- Please don't reformat code for the sake of reformatting code. The resulting large "visual diff" makes it impossible to untangle actual bug fixes from merely rearranged lines. clang-format will be the final arbiter.