Change hue icons to horizontal GradientTexture2D

scene/gui/color_mode.cpp

@@ -158,8 +158,7 @@ void ColorModeHSV::slider_draw(int p_which) {
 		right_color.a = 1;
 	} else if (p_which == 0) {
 		Ref<Texture2D> hue = color_picker->get_theme_icon(SNAME("color_hue"), SNAME("ColorPicker"));
-		slider->draw_set_transform(Point2(), -Math_PI / 2, Size2(1.0, 1.0));
-		slider->draw_texture_rect(hue, Rect2(Vector2(margin * -1, 0), Vector2(margin, size.x)), false);
+		slider->draw_texture_rect(hue, Rect2(Vector2(), Vector2(size.x, margin)), false);
 		return;
 	} else {
 		Color s_col;
@@ -290,8 +289,7 @@ void ColorModeOKHSL::slider_draw(int p_which) {
 
 	if (p_which == 0) { // H
 		Ref<Texture2D> hue = color_picker->get_theme_icon(SNAME("color_okhsl_hue"), SNAME("ColorPicker"));
-		slider->draw_set_transform(Point2(), -Math_PI / 2, Size2(1.0, 1.0));
-		slider->draw_texture_rect(hue, Rect2(Vector2(margin * -1, 0), Vector2(margin, size.x)), false);
+		slider->draw_texture_rect(hue, Rect2(Vector2(), Vector2(size.x, margin)), false);
 		return;
 	}
 

scene/resources/default_theme/color_picker_hue.svg

@@ -1 +0,0 @@
-<svg clip-rule="evenodd" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" viewBox="0 0 1 256" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><linearGradient id="a" gradientTransform="matrix(0 256 -256 0 0 0)" gradientUnits="userSpaceOnUse" x1="0" x2="1" y1="0" y2="0"><stop offset="0" stop-color="#f00"/><stop offset=".04" stop-color="#ff4000"/><stop offset=".08" stop-color="#ff8000"/><stop offset=".17" stop-color="#ff0"/><stop offset=".25" stop-color="#80ff00"/><stop offset=".33" stop-color="#0f0"/><stop offset=".42" stop-color="#00ff80"/><stop offset=".5" stop-color="#0ff"/><stop offset=".58" stop-color="#0080ff"/><stop offset=".63" stop-color="#0040ff"/><stop offset=".67" stop-color="#00f"/><stop offset=".75" stop-color="#8000ff"/><stop offset=".83" stop-color="#f0f"/><stop offset=".92" stop-color="#ff0080"/><stop offset="1" stop-color="#f00"/></linearGradient><path d="m0 0h1v256h-1z" fill="url(#a)"/></svg>

scene/resources/default_theme/color_picker_okhsl_hue.svg

@@ -1 +0,0 @@
-<svg clip-rule="evenodd" fill-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="2" viewBox="0 0 1 256" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><linearGradient id="a" gradientTransform="matrix(0 256 -256 0 0 0)" gradientUnits="userSpaceOnUse" x1="0" x2="1" y1="0" y2="0"><stop offset="0" stop-color="#d70071"/><stop offset=".07142857143" stop-color="#df0020"/><stop offset=".14285714286" stop-color="#b85800"/><stop offset=".21428571429" stop-color="#9e6c00"/><stop offset=".28571428571" stop-color="#857900"/><stop offset=".35714285714" stop-color="#5c8700"/><stop offset=".42857142857" stop-color="#008e4f"/><stop offset=".5" stop-color="#008a79"/><stop offset=".57142857143" stop-color="#008793"/><stop offset=".64285714286" stop-color="#0082ae"/><stop offset=".71428571429" stop-color="#0071eb"/><stop offset=".78571428571" stop-color="#6d50ff"/><stop offset=".85714285714" stop-color="#a801f4"/><stop offset=".92857142857" stop-color="#c600b2"/><stop offset="1" stop-color="#d70071"/></linearGradient><path d="m0 0h1v256h-1z" fill="url(#a)"/></svg>

scene/resources/default_theme/default_theme.cpp

@@ -887,13 +887,65 @@ void fill_default_theme(Ref<Theme> &theme, const Ref<Font> &default_font, const
 	theme->set_icon("shape_rect", "ColorPicker", icons["picker_shape_rectangle"]);
 	theme->set_icon("shape_rect_wheel", "ColorPicker", icons["picker_shape_rectangle_wheel"]);
 	theme->set_icon("add_preset", "ColorPicker", icons["add"]);
-	theme->set_icon("color_hue", "ColorPicker", icons["color_picker_hue"]);
-	theme->set_icon("color_okhsl_hue", "ColorPicker", icons["color_picker_okhsl_hue"]);
 	theme->set_icon("sample_bg", "ColorPicker", icons["mini_checkerboard"]);
 	theme->set_icon("overbright_indicator", "ColorPicker", icons["color_picker_overbright"]);
 	theme->set_icon("bar_arrow", "ColorPicker", icons["color_picker_bar_arrow"]);
 	theme->set_icon("picker_cursor", "ColorPicker", icons["color_picker_cursor"]);
 
+	{
+		const int precision = 7;
+
+		Ref<Gradient> hue_gradient;
+		hue_gradient.instantiate();
+		PackedFloat32Array offsets;
+		offsets.resize(precision);
+		PackedColorArray colors;
+		colors.resize(precision);
+
+		for (int i = 0; i < precision; i++) {
+			float h = i / float(precision - 1);
+			offsets.write[i] = h;
+			colors.write[i] = Color::from_hsv(h, 1, 1);
+		}
+		hue_gradient->set_offsets(offsets);
+		hue_gradient->set_colors(colors);
+
+		Ref<GradientTexture2D> hue_texture;
+		hue_texture.instantiate();
+		hue_texture->set_width(800);
+		hue_texture->set_height(6);
+		hue_texture->set_gradient(hue_gradient);
+
+		theme->set_icon("color_hue", "ColorPicker", hue_texture);
+	}
+
+	{
+		const int precision = 7;
+
+		Ref<Gradient> hue_gradient;
+		hue_gradient.instantiate();
+		PackedFloat32Array offsets;
+		offsets.resize(precision);
+		PackedColorArray colors;
+		colors.resize(precision);
+
+		for (int i = 0; i < precision; i++) {
+			float h = i / float(precision - 1);
+			offsets.write[i] = h;
+			colors.write[i] = Color::from_ok_hsl(h, 1, 0.5);
+		}
+		hue_gradient->set_offsets(offsets);
+		hue_gradient->set_colors(colors);
+
+		Ref<GradientTexture2D> hue_texture;
+		hue_texture.instantiate();
+		hue_texture->set_width(800);
+		hue_texture->set_height(6);
+		hue_texture->set_gradient(hue_gradient);
+
+		theme->set_icon("color_okhsl_hue", "ColorPicker", hue_texture);
+	}
+
 	// ColorPickerButton
 
 	theme->set_icon("bg", "ColorPickerButton", icons["mini_checkerboard"]);