fix(term): ansi: scale colors in RGBA

exp/term/ansi/color.go

@@ -101,7 +101,10 @@ func (c BasicColor) RGBA() (uint32, uint32, uint32, uint32) {
 	}
 
 	r, g, b := ansiToRGB(ansi)
-	return r, g, b, 0xff
+	r |= r << 8
+	g |= g << 8
+	b |= b << 8
+	return r, g, b, 0xff00
 }
 
 // ExtendedColor is an ANSI 256 (8-bit) color with a value from 0 to 255.
@@ -113,7 +116,10 @@ var _ Color = ExtendedColor(0)
 // satisfies the color.Color interface.
 func (c ExtendedColor) RGBA() (uint32, uint32, uint32, uint32) {
 	r, g, b := ansiToRGB(uint32(c))
-	return r, g, b, 0xff
+	r |= r << 8
+	g |= g << 8
+	b |= b << 8
+	return r, g, b, 0xff00
 }
 
 // TrueColor is a 24-bit color that can be used in the terminal.
@@ -130,7 +136,10 @@ var _ Color = TrueColor(0)
 // satisfies the color.Color interface.
 func (c TrueColor) RGBA() (uint32, uint32, uint32, uint32) {
 	r, g, b := hexToRGB(uint32(c))
-	return r, g, b, 0xff
+	r |= r << 8
+	g |= g << 8
+	b |= b << 8
+	return r, g, b, 0xff00
 }
 
 // ansiToRGB converts an ANSI color to a 24-bit RGB color.

exp/term/ansi/color_test.go

@@ -17,8 +17,11 @@ func TestRGBAToHex(t *testing.T) {
 
 	for _, c := range cases {
 		gotR, gotG, gotB, _ := TrueColor(c.want).RGBA()
+		gotR /= 256
+		gotG /= 256
+		gotB /= 256
 		if gotR != c.r || gotG != c.g || gotB != c.b {
-			t.Errorf("RGBA() of TrueColor(%v): got (%v, %v, %v), want (%v, %v, %v)",
+			t.Errorf("RGBA() of TrueColor(%06x): got (%v, %v, %v), want (%v, %v, %v)",
 				c.want, gotR, gotG, gotB, c.r, c.g, c.b)
 		}
 	}