Wm colr

[wmedrano]

Prompt 1

/plan @src/pens.rs Add support for layers and composites.

    Downstream callers (png and svg) should still return not supported for now

/build lgtm

Prompt 2

/plan Add support for blend modes and layers in @src/text2png.rs

    The instructions are generated from @src/pens.rs
    Use the 🇬🇹 emoji for unit tests
        You can use the skera subsetter as specified in @src/lib.rs to generate a new test font
        The full emoji font is at /home/wmedrano/Downloads/Noto_Color_Emoji/NotoColorEmoji-Regular.ttf

/build lgtm

Prompt 3

/plan Add layers and blending support to @src/draw_icon/icon2svg.rs

    Layers are collected in @src/pens.rs
    @src/text2png.rs already supports layers as well, use it for unit test inspiration

/build lgtm