Struct ColorGlyph 

pub struct ColorGlyph {
    pub advance: f32,
    pub width: u32,
    pub height: u32,
    pub rgba: Arc<Vec<u8>>,
}

One decoded color glyph: real advance width (font units, ttf_parser’s own metric — NOT approximated from bitmap size) + a premultiplied RGBA8 bitmap (tiny_skia::Pixmap::decode_png’s own convention — the SAME one rosace-render::image’s Image widget already decodes PNGs with, so this reuses an already-consistent pixel-format contract, not a new one) at whatever sbix strike size glyph_raster_image picked (nearest available, not rescaled to the exact requested px — a named simplification; see color_glyph_rgba’s doc).

Fields

advance: f32

width: u32

height: u32

rgba: Arc<Vec<u8>>

Arc, not a plain Vec — matches rosace_render::canvas::ImagePixels (the Image widget’s own blit-source wrapper), so the GPU-shapes path clones a refcount instead of the pixel bytes every repaint frame.