inline void highlight(pixel32 *x, pixel32 *y, bool raised) const;
void verticalGradient(Surface &sf, const RenderTexture &texture) const;
+ void horizontalGradient(Surface &sf, const RenderTexture &texture) const;
void diagonalGradient(Surface &sf, const RenderTexture &texture) const;
void crossDiagonalGradient(Surface &sf, const RenderTexture &texture) const;
virtual void drawGradientBackground(Surface &sf,