Clean up library inheritance (colors.h, utils.h)

make libwidget independent of libcanvas.
Confine basics to pbd and gtkmm2ext.

17 files changed, 74 insertions, 264 deletions

diff --git a/libs/canvas/canvas/arrow.h b/libs/canvas/canvas/arrow.h
index ba74fa90e7..e04d450c18 100644
--- a/libs/canvas/canvas/arrow.h
+++ b/libs/canvas/canvas/arrow.h
@@ -58,7 +58,7 @@ public:
 	void set_head_height (int, Distance);
 	void set_head_width (int, Distance);
 	void set_outline_width (Distance);
-	void set_color (Color);
+	void set_color (Gtkmm2ext::Color);
 
 	Coord x () const;
 	Coord y1 () const;
@@ -67,7 +67,7 @@ public:
 	void set_y0 (Coord);
 	void set_y1 (Coord);
 
-        bool covers (Duple const &) const;
+	bool covers (Duple const &) const;
 
 private:
 	void setup_polygon (int);
diff --git a/libs/canvas/canvas/box.h b/libs/canvas/canvas/box.h
index b3b2b85303..cefbc716df 100644
--- a/libs/canvas/canvas/box.h
+++ b/libs/canvas/canvas/box.h
@@ -56,7 +56,7 @@ public:
 
 	/* aliases so that CSS box model terms work */
 	void set_border_width (double w) { set_outline_width (w); }
-	void set_border_color (Color c)  { set_outline_color (c); }
+	void set_border_color (Gtkmm2ext::Color c)  { set_outline_color (c); }
 
 	void add (Item*);
 	void pack_start (Item*, double extra_padding = 0);
diff --git a/libs/canvas/canvas/canvas.h b/libs/canvas/canvas/canvas.h
index 3bcf58256d..6d8fd89a7a 100644
--- a/libs/canvas/canvas/canvas.h
+++ b/libs/canvas/canvas/canvas.h
@@ -98,8 +98,8 @@ public:
 		return &_root;
 	}
 
-	void set_background_color (ArdourCanvas::Color);
-	ArdourCanvas::Color background_color() const { return _bg_color; }
+	void set_background_color (Gtkmm2ext::Color);
+	Gtkmm2ext::Color background_color() const { return _bg_color; }
 
 	/** Called when an item is being destroyed */
 	virtual void item_going_away (Item *, Rect) {}
@@ -170,8 +170,8 @@ public:
 	virtual Glib::RefPtr<Pango::Context> get_pango_context() = 0;
 
 protected:
-	Root  _root;
-	Color _bg_color;
+	Root             _root;
+	Gtkmm2ext::Color _bg_color;
 
 	mutable gint64 _last_render_start_timestamp;
 
diff --git a/libs/canvas/canvas/colors.h b/libs/canvas/canvas/colors.h
deleted file mode 100644
index f48e2347a3..0000000000
--- a/libs/canvas/canvas/colors.h
+++ /dev/null
@@ -1,130 +0,0 @@
-/*
-    Copyright (C) 2011-2013 Paul Davis
-    Author: Carl Hetherington <cth@carlh.net>
-
-    This program is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with this program; if not, write to the Free Software
-    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*/
-
-#ifndef __ardour_canvas_colors_h__
-#define __ardour_canvas_colors_h__
-
-#include <cairomm/context.h>
-
-#include "canvas/visibility.h"
-#include "canvas/types.h"
-
-namespace ArdourCanvas
-{
-
-struct LIBCANVAS_API HSV;
-struct LIBCANVAS_API HSVA;
-
-extern LIBCANVAS_API Color change_alpha (Color, double alpha);
-
-extern LIBCANVAS_API Color hsva_to_color (double h, double s, double v, double a = 1.0);
-extern LIBCANVAS_API void  color_to_hsva (Color color, double& h, double& s, double& v, double& a);
-extern LIBCANVAS_API Color color_at_alpha (Color, double a);
-extern LIBCANVAS_API void  color_to_hsv (Color color, double& h, double& s, double& v);
-extern LIBCANVAS_API void  color_to_rgba (Color, double& r, double& g, double& b, double& a);
-extern LIBCANVAS_API Color rgba_to_color (double r, double g, double b, double a);
-
-uint32_t LIBCANVAS_API contrasting_text_color (uint32_t c);
-
-struct LIBCANVAS_API HSV;
-
-class LIBCANVAS_API SVAModifier
-{
-  public:
-	enum Type {
-		Add,
-		Multiply,
-		Assign
-	};
-
-	SVAModifier (std::string const &);
-	SVAModifier (Type t, double ss, double vv, double aa) : type (t), _s (ss) , _v (vv) , _a (aa) {}
-	SVAModifier () : type (Add), _s (0), _v (0), _a (0) {} /* no-op modifier */
-
-	double s() const { return _s; }
-	double v() const { return _v; }
-	double a() const { return _a; }
-
-	HSV operator () (HSV& hsv) const;
-	std::string to_string () const;
-	void from_string (std::string const &);
-
-  private:
-	Type type;
-	double _s;
-	double _v;
-	double _a;
-};
-
-struct LIBCANVAS_API HSV
-{
-	HSV ();
-	HSV (double h, double s, double v, double a = 1.0);
-	HSV (Color);
-
-	double h;
-	double s;
-	double v;
-	double a;
-
-	std::string to_string() const;
-	bool is_gray() const;
-
-	Color color() const { return hsva_to_color (h,s, v, a); }
-	operator Color() const { return color(); }
-
-	HSV mod (SVAModifier const & svam);
-
-	HSV operator+ (const HSV&) const;
-	HSV operator- (const HSV&) const;
-
-	HSV& operator=(Color);
-	HSV& operator=(const std::string&);
-
-	bool operator== (const HSV& other);
-
-	double distance (const HSV& other) const;
-	HSV delta (const HSV& other) const;
-
-	HSV darker (double factor = 1.3) const { return shade (factor); }
-	HSV lighter (double factor = 0.7) const { return shade (factor); }
-
-	HSV shade (double factor) const;
-	HSV mix (const HSV& other, double amt) const;
-
-	HSV opposite() const;
-	HSV complement() const { return opposite(); }
-
-	HSV bw_text () const;
-	HSV text() const;
-	HSV selected () const;
-	HSV outline() const;
-
-	void print (std::ostream&) const;
-
-  protected:
-	void clamp ();
-};
-
-
-}
-
-std::ostream& operator<<(std::ostream& o, const ArdourCanvas::HSV& hsv);
-
-#endif /* __ardour_canvas_colors_h__ */
diff --git a/libs/canvas/canvas/colorspace.h b/libs/canvas/canvas/colorspace.h
deleted file mode 100644
index 77d0961934..0000000000
--- a/libs/canvas/canvas/colorspace.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/**
- * @file colorspace.h
- * @author Pascal Getreuer 2005-2010 <getreuer@gmail.com>
- */
-
-#ifndef _ARDOURCANVAS_COLORSPACE_H_
-#define _ARDOURCANVAS_COLORSPACE_H_
-
-/** @brief XYZ color of the D65 white point */
-#define WHITEPOINT_X	0.950456
-#define WHITEPOINT_Y	1.0
-#define WHITEPOINT_Z	1.088754
-
-void Rgb2Yuv(double *Y, double *U, double *V, double R, double G, double B);
-void Yuv2Rgb(double *R, double *G, double *B, double Y, double U, double V);
-void Rgb2Ycbcr(double *Y, double *Cb, double *Cr, double R, double G, double B);
-void Ycbcr2Rgb(double *R, double *G, double *B, double Y, double Cb, double Cr);
-void Rgb2Jpegycbcr(double *R, double *G, double *B, double Y, double Cb, double Cr);
-void Jpegycbcr2Rgb(double *R, double *G, double *B, double Y, double Cb, double Cr);
-void Rgb2Ypbpr(double *Y, double *Pb, double *Pr, double R, double G, double B);
-void Ypbpr2Rgb(double *R, double *G, double *B, double Y, double Pb, double Pr);
-void Rgb2Ydbdr(double *Y, double *Db, double *Dr, double R, double G, double B);
-void Ydbdr2Rgb(double *R, double *G, double *B, double Y, double Db, double Dr);
-void Rgb2Yiq(double *Y, double *I, double *Q, double R, double G, double B);
-void Yiq2Rgb(double *R, double *G, double *B, double Y, double I, double Q);
-
-void Rgb2Hsv(double *H, double *S, double *V, double R, double G, double B);
-void Hsv2Rgb(double *R, double *G, double *B, double H, double S, double V);
-void Rgb2Hsl(double *H, double *S, double *L, double R, double G, double B);
-void Hsl2Rgb(double *R, double *G, double *B, double H, double S, double L);
-void Rgb2Hsi(double *H, double *S, double *I, double R, double G, double B);
-void Hsi2Rgb(double *R, double *G, double *B, double H, double S, double I);
-
-void Rgb2Xyz(double *X, double *Y, double *Z, double R, double G, double B);
-void Xyz2Rgb(double *R, double *G, double *B, double X, double Y, double Z);
-void Xyz2Lab(double *L, double *a, double *b, double X, double Y, double Z);
-void Lab2Xyz(double *X, double *Y, double *Z, double L, double a, double b);
-void Xyz2Luv(double *L, double *u, double *v, double X, double Y, double Z);
-void Luv2Xyz(double *X, double *Y, double *Z, double L, double u, double v);
-void Xyz2Lch(double *L, double *C, double *H, double X, double Y, double Z);
-void Lch2Xyz(double *X, double *Y, double *Z, double L, double C, double H);
-void Xyz2Cat02lms(double *L, double *M, double *S, double X, double Y, double Z);
-void Cat02lms2Xyz(double *X, double *Y, double *Z, double L, double M, double S);
-
-void Rgb2Lab(double *L, double *a, double *b, double R, double G, double B);
-void Lab2Rgb(double *R, double *G, double *B, double L, double a, double b);
-void Rgb2Luv(double *L, double *u, double *v, double R, double G, double B);
-void Luv2Rgb(double *R, double *G, double *B, double L, double u, double v);
-void Rgb2Lch(double *L, double *C, double *H, double R, double G, double B);
-void Lch2Rgb(double *R, double *G, double *B, double L, double C, double H);
-void Rgb2Cat02lms(double *L, double *M, double *S, double R, double G, double B);
-void Cat02lms2Rgb(double *R, double *G, double *B, double L, double M, double S);
-
-#endif  /* _ARDOURCANVAS_COLORSPACE_H_ */
diff --git a/libs/canvas/canvas/fill.h b/libs/canvas/canvas/fill.h
index 42160a6190..95a29fd760 100644
--- a/libs/canvas/canvas/fill.h
+++ b/libs/canvas/canvas/fill.h
@@ -38,10 +38,10 @@ public:
 	Fill (Item& self);
 	virtual ~Fill() {}
 
-	virtual void set_fill_color (Color);
+	virtual void set_fill_color (Gtkmm2ext::Color);
 	virtual void set_fill (bool);
 
-	Color fill_color () const {
+	Gtkmm2ext::Color fill_color () const {
 		return _fill_color;
 	}
 
@@ -49,23 +49,23 @@ public:
 		return _fill;
 	}
 
-        typedef std::vector<std::pair<double,Color> > StopList;
+	typedef std::vector<std::pair<double,Gtkmm2ext::Color> > StopList;
 
-        void set_gradient (StopList const & stops, bool is_vertical);
+	void set_gradient (StopList const & stops, bool is_vertical);
 
-        void set_pattern (Cairo::RefPtr<Cairo::Pattern>);
+	void set_pattern (Cairo::RefPtr<Cairo::Pattern>);
 
 protected:
 	void setup_fill_context (Cairo::RefPtr<Cairo::Context>) const;
-        void setup_gradient_context (Cairo::RefPtr<Cairo::Context>, Rect const &, Duple const &) const;
+	void setup_gradient_context (Cairo::RefPtr<Cairo::Context>, Rect const &, Duple const &) const;
 
-       	Item& _self;
-	Color _fill_color;
+	Item& _self;
+	Gtkmm2ext::Color _fill_color;
 	bool _fill;
 	bool _transparent;
-        StopList _stops;
-        bool _vertical_gradient;
-        Cairo::RefPtr<Cairo::Pattern> _pattern;
+	StopList _stops;
+	bool _vertical_gradient;
+	Cairo::RefPtr<Cairo::Pattern> _pattern;
 
 };
 
diff --git a/libs/canvas/canvas/flag.h b/libs/canvas/canvas/flag.h
index 580adb2837..ac77cc759f 100644
--- a/libs/canvas/canvas/flag.h
+++ b/libs/canvas/canvas/flag.h
@@ -35,23 +35,23 @@ class Rectangle;
 class LIBCANVAS_API Flag : public Container
 {
 public:
-	Flag (Canvas *, Distance, Color, Color, Duple, bool invert=false);
-	Flag (Item*, Distance, Color, Color, Duple, bool invert=false);
+	Flag (Canvas *, Distance, Gtkmm2ext::Color, Gtkmm2ext::Color, Duple, bool invert=false);
+	Flag (Item*, Distance, Gtkmm2ext::Color, Gtkmm2ext::Color, Duple, bool invert=false);
 
 	void set_text (std::string const &);
 	void set_height (Distance);
 
 	void set_font_description (Pango::FontDescription);
 
-        bool covers (Duple const &) const;
+	bool covers (Duple const &) const;
 
 	double width() const;
 
 private:
 	void setup (Distance height, Duple position);
 
-	Color _outline_color;
-	Color _fill_color;
+	Gtkmm2ext::Color _outline_color;
+	Gtkmm2ext::Color _fill_color;
 	Text* _text;
 	Line* _line;
 	Rectangle* _rectangle;
diff --git a/libs/canvas/canvas/grid.h b/libs/canvas/canvas/grid.h
index 8e6dd3b7de..aa14f2b17a 100644
--- a/libs/canvas/canvas/grid.h
+++ b/libs/canvas/canvas/grid.h
@@ -45,7 +45,7 @@ public:
 
 	/* aliases so that CSS box model terms work */
 	void set_border_width (double w) { set_outline_width (w); }
-	void set_border_color (Color c)  { set_outline_color (c); }
+	void set_border_color (Gtkmm2ext::Color c)  { set_outline_color (c); }
 
 	void place (Item*, double x, double y, double col_span = 1, double row_span = 1);
 
diff --git a/libs/canvas/canvas/line_set.h b/libs/canvas/canvas/line_set.h
index c305cceab5..ccce24aa89 100644
--- a/libs/canvas/canvas/line_set.h
+++ b/libs/canvas/canvas/line_set.h
@@ -41,20 +41,20 @@ public:
 	void compute_bounding_box () const;
 	void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
 
-        bool covers (Duple const &) const;
+	bool covers (Duple const &) const;
 
 	void set_extent (Distance);
 	Distance extent() const { return _extent; }
 
-	void add (Coord, Distance, Color);
+	void add (Coord, Distance, Gtkmm2ext::Color);
 	void clear ();
 
 	struct Line {
-		Line (Coord p, Distance width_, Color color_) : pos (p), width (width_), color (color_) {}
+		Line (Coord p, Distance width_, Gtkmm2ext::Color color_) : pos (p), width (width_), color (color_) {}
 
 		Coord pos;
 		Distance width;
-		Color color;
+		Gtkmm2ext::Color color;
 	};
 
 private:
diff --git a/libs/canvas/canvas/outline.h b/libs/canvas/canvas/outline.h
index 38f8eb2e32..b33c993077 100644
--- a/libs/canvas/canvas/outline.h
+++ b/libs/canvas/canvas/outline.h
@@ -37,11 +37,11 @@ public:
 	Outline (Item& self);
 	virtual ~Outline() {}
 
-	Color outline_color () const {
+	Gtkmm2ext::Color outline_color () const {
 		return _outline_color;
 	}
 
-	virtual void set_outline_color (Color);
+	virtual void set_outline_color (Gtkmm2ext::Color);
 
 	Distance outline_width () const {
 		return _outline_width;
@@ -59,10 +59,10 @@ protected:
 
 	void setup_outline_context (Cairo::RefPtr<Cairo::Context>) const;
 
-	Item&    _self;
-	Color    _outline_color;
-	Distance _outline_width;
-	bool     _outline;
+	Item&            _self;
+	Gtkmm2ext::Color _outline_color;
+	Distance         _outline_width;
+	bool             _outline;
 };
 
 }
diff --git a/libs/canvas/canvas/ruler.h b/libs/canvas/canvas/ruler.h
index 751ddcc104..59ce625dca 100644
--- a/libs/canvas/canvas/ruler.h
+++ b/libs/canvas/canvas/ruler.h
@@ -70,19 +70,18 @@ public:
 
 	void render (Rect const & area, Cairo::RefPtr<Cairo::Context>) const;
 
-	void set_divide_colors (Color top, Color bottom);
+	void set_divide_colors (Gtkmm2ext::Color top, Gtkmm2ext::Color bottom);
 	void set_divide_height (double);
 private:
 	const Metric* _metric;
 
-	/* lower and upper and sample positions, which are also canvas coordinates
-	 */
+	/* lower and upper and sample positions, which are also canvas coordinates */
 
-	Coord         _lower;
-	Coord         _upper;
-	double        _divide_height;
-	Color         _divider_color_top;
-	Color         _divider_color_bottom;
+	Coord            _lower;
+	Coord            _upper;
+	double           _divide_height;
+	Gtkmm2ext::Color _divider_color_top;
+	Gtkmm2ext::Color _divider_color_bottom;
 
 	Pango::FontDescription* _font_description;
 	mutable std::vector<Mark> marks;
diff --git a/libs/canvas/canvas/text.h b/libs/canvas/canvas/text.h
index bd6c049606..c05bc69050 100644
--- a/libs/canvas/canvas/text.h
+++ b/libs/canvas/canvas/text.h
@@ -33,43 +33,43 @@ class LIBCANVAS_API Text : public Item
 public:
 	Text (Canvas*);
 	Text (Item*);
-       ~Text();
+	~Text();
 
 	void render (Rect const &, Cairo::RefPtr<Cairo::Context>) const;
 	void compute_bounding_box () const;
 
-        ArdourCanvas::Color color () const { return _color; }
-	void set_color (ArdourCanvas::Color);
+	Gtkmm2ext::Color color () const { return _color; }
+	void set_color (Gtkmm2ext::Color);
 
 	void set (std::string const &);
 	void set_font_description (Pango::FontDescription);
 	void set_alignment (Pango::Alignment);
 
-        void clamp_width (double);
+	void clamp_width (double);
 
-        double width() const;
-        double height() const;
+	double width() const;
+	double height() const;
 
-        void set_size_chars (int nchars);
-        void dump (std::ostream&) const;
+	void set_size_chars (int nchars);
+	void dump (std::ostream&) const;
 
 	std::string text() const { return _text; }
 	double text_width() const;
 
 private:
 	std::string             _text;
-        ArdourCanvas::Color     _color;
+	Gtkmm2ext::Color        _color;
 	Pango::FontDescription* _font_description;
 	Pango::Alignment        _alignment;
-        mutable Cairo::RefPtr<Cairo::ImageSurface> _image;
-        mutable Duple          _origin;
-        mutable double         _width;
-        mutable double         _height;
-        mutable bool           _need_redraw;
-        mutable double         _width_correction;
-        double                 _clamped_width;
-
-        void _redraw () const;
+	mutable Cairo::RefPtr<Cairo::ImageSurface> _image;
+	mutable Duple           _origin;
+	mutable double          _width;
+	mutable double          _height;
+	mutable bool            _need_redraw;
+	mutable double          _width_correction;
+	double                  _clamped_width;
+
+	void _redraw () const;
 };
 
 }
diff --git a/libs/canvas/canvas/types.h b/libs/canvas/canvas/types.h
index a3f1b81ea1..9a4f2f7b3b 100644
--- a/libs/canvas/canvas/types.h
+++ b/libs/canvas/canvas/types.h
@@ -28,6 +28,8 @@
 
 #include <cairomm/refptr.h>
 
+#include "gtkmm2ext/colors.h"
+
 #include "canvas/visibility.h"
 
 namespace Cairo {
@@ -39,7 +41,6 @@ namespace ArdourCanvas
 
 typedef double Coord;
 typedef double Distance;
-typedef uint32_t Color;
 
 extern LIBCANVAS_API Coord const COORD_MAX;
 
diff --git a/libs/canvas/canvas/utils.h b/libs/canvas/canvas/utils.h
index 42551a6c9a..8137b2abf7 100644
--- a/libs/canvas/canvas/utils.h
+++ b/libs/canvas/canvas/utils.h
@@ -27,12 +27,6 @@
 
 namespace ArdourCanvas {
 
-	extern LIBCANVAS_API void set_source_rgba (Cairo::RefPtr<Cairo::Context>, Color);
-	extern LIBCANVAS_API void set_source_rgb_a (Cairo::RefPtr<Cairo::Context>, Color, float alpha);  //override the color's alpha
-
-	extern LIBCANVAS_API void set_source_rgba (cairo_t*, Color);
-	extern LIBCANVAS_API void set_source_rgb_a (cairo_t*, Color, float alpha);  //override the color's alpha
-
 	Distance LIBCANVAS_API distance_to_segment_squared (Duple const & p, Duple const & p1, Duple const & p2, double& t, Duple& at);
 }
 
diff --git a/libs/canvas/canvas/wave_view.h b/libs/canvas/canvas/wave_view.h
index de6b38d13e..1767262151 100644
--- a/libs/canvas/canvas/wave_view.h
+++ b/libs/canvas/canvas/wave_view.h
@@ -100,8 +100,8 @@ public:
 	 */
 	void set_start_shift (double pixels);
 
-	void set_fill_color (Color);
-	void set_outline_color (Color);
+	void set_fill_color (Gtkmm2ext::Color);
+	void set_outline_color (Gtkmm2ext::Color);
 
 	void region_resized ();
 	void gain_changed ();
@@ -109,8 +109,8 @@ public:
 	void set_show_zero_line (bool);
 	bool show_zero_line () const;
 
-	void set_zero_color (Color);
-	void set_clip_color (Color);
+	void set_zero_color (Gtkmm2ext::Color);
+	void set_clip_color (Gtkmm2ext::Color);
 	void set_logscaled (bool);
 
 	void set_gradient_depth (double);
diff --git a/libs/canvas/canvas/wave_view_private.h b/libs/canvas/canvas/wave_view_private.h
index dca09c90b5..d870300998 100644
--- a/libs/canvas/canvas/wave_view_private.h
+++ b/libs/canvas/canvas/wave_view_private.h
@@ -48,10 +48,10 @@ public: // member variables
 	double                samples_per_pixel;
 	double                amplitude;
 	double                amplitude_above_axis;
-	Color                 fill_color;
-	Color                 outline_color;
-	Color                 zero_color;
-	Color                 clip_color;
+	Gtkmm2ext::Color      fill_color;
+	Gtkmm2ext::Color      outline_color;
+	Gtkmm2ext::Color      zero_color;
+	Gtkmm2ext::Color      clip_color;
 	bool                  show_zero;
 	bool                  logscaled;
 	WaveView::Shape       shape;
diff --git a/libs/canvas/canvas/xfade_curve.h b/libs/canvas/canvas/xfade_curve.h
index b6e871936b..50ce96e769 100644
--- a/libs/canvas/canvas/xfade_curve.h
+++ b/libs/canvas/canvas/xfade_curve.h
@@ -48,13 +48,13 @@ public:
 	void set_points_per_segment (uint32_t n);
 	void set_inout (Points const & in, Points const & out);
 
-	void set_outline_color (Color c) {
+	void set_outline_color (Gtkmm2ext::Color c) {
 		begin_visual_change ();
 		_outline_color = c;
 		end_visual_change ();
 	};
 
-	void set_fill_color (Color c) {
+	void set_fill_color (Gtkmm2ext::Color c) {
 		begin_visual_change ();
 		_fill_color = c;
 		end_visual_change ();
@@ -76,9 +76,9 @@ private:
 	CanvasCurve _in;
 	CanvasCurve _out;
 
-	XFadePosition _xfadeposition;
-	Color _outline_color;
-	Color _fill_color;
+	XFadePosition    _xfadeposition;
+	Gtkmm2ext::Color _outline_color;
+	Gtkmm2ext::Color _fill_color;
 
 	bool show_background_fade;