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widget: use correct color in Icon

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iconvg seems to expect a linear premultiplied color.

Fixes gio#132

Signed-off-by: Egon Elbre <egonelbre@gmail.com>
This commit is contained in:
Egon Elbre
2021-01-11 11:04:02 +02:00
committed by Elias Naur
parent 0e3e446393
commit f114acdb02
4 changed files with 103 additions and 1 deletions
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widget/icon.go
+1 -1
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@@ -51,7 +51,7 @@ func (ic *Icon) image(sz int) paint.ImageOp {
img := image.NewRGBA(image.Rectangle{Max: image.Point{X: sz, Y: int(float32(sz) * dy / dx)}})
var ico iconvg.Rasterizer
ico.SetDstImage(img, img.Bounds(), draw.Src)
m.Palette[0] = f32color.NRGBAToRGBA(ic.Color)
m.Palette[0] = f32color.NRGBAToLinearRGBA(ic.Color)
iconvg.Decode(&ico, ic.src, &iconvg.DecodeOptions{
Palette: &m.Palette,
})