def redraw_bg(self):
        # Convenience variables
        sx,sy = self.widget.size
        x,y = self.widget.pos
        bx,by = self.border
        
        # Button background
        
        # Outer vertices
        #    x          y
        v1 = x,         y+sy
        v2 = x+sx,      y+sy
        v3 = x,         y
        v4 = x+sx,      y
        
        # Inner vertices
        #    x          y
        v5 = x+bx,      y+sy-by
        v6 = x+sx-bx,   y+sy-by
        v7 = x+bx,      y+by
        v8 = x+sx-bx,   y+by
        
        # 5 Quads, for edges and the center
        qb1 = v5+v6+v2+v1
        qb2 = v8+v4+v2+v6
        qb3 = v3+v4+v8+v7
        qb4 = v3+v7+v5+v1
        qc  = v7+v8+v6+v5
        
        v = qb1+qb2+qb3+qb4+qc
        
        self.vlist.vertices = v
        
        bg = self.submenu.bg[:3] if isinstance(self.submenu.bg,list) or isinstance(self.submenu.bg,tuple) else [242,241,240]
        o,i = bg, [min(bg[0]+8,255),min(bg[1]+8,255),min(bg[2]+8,255)]
        s,h = [max(bg[0]-40,0),max(bg[1]-40,0),max(bg[2]-40,0)], [min(bg[0]+12,255),min(bg[1]+12,255),min(bg[2]+12,255)]
        # Outer,Inner,Shadow,Highlight
        
        if self.borderstyle == "flat":
            if self.widget.pressed:
                i = s
            cb1 = i+i+i+i
            cb2 = i+i+i+i
            cb3 = i+i+i+i
            cb4 = i+i+i+i
            cc  = i+i+i+i
        elif self.borderstyle == "gradient":
            if self.widget.pressed:
                i = s
            elif self.widget.is_hovering:
                i = [min(i[0]+6,255),min(i[1]+6,255),min(i[2]+6,255)]
            cb1 = i+i+o+o
            cb2 = i+o+o+i
            cb3 = o+o+i+i
            cb4 = o+i+i+o
            cc  = i+i+i+i
        elif self.borderstyle == "oldshadow":
            if self.widget.pressed:
                i = s
                s,h = h,s
            elif self.widget.is_hovering:
                i = [min(i[0]+6,255),min(i[1]+6,255),min(i[2]+6,255)]
                s = [min(s[0]+6,255),min(s[1]+6,255),min(s[2]+6,255)]
            cb1 = h+h+h+h
            cb2 = s+s+s+s
            cb3 = s+s+s+s
            cb4 = h+h+h+h
            cc  = i+i+i+i
        elif self.borderstyle == "material":
            if self.widget.pressed:
                i = [max(bg[0]-20,0),max(bg[1]-20,0),max(bg[2]-20,0)]
            elif self.widget.is_hovering:
                i = [max(bg[0]-10,0),max(bg[1]-10,0),max(bg[2]-10,0)]
            cb1 = s+s+o+o
            cb2 = s+o+o+s
            cb3 = o+o+s+s
            cb4 = o+s+s+o
            cc  = i+i+i+i
        else:
            raise ValueError("Invalid Border style")
        
        c = cb1+cb2+cb3+cb4+cc
        
        self.vlist.colors = c
        
        # Cross
        
        # Old method that displayed a tick
        """if not self.widget.pressed:
            self.vlist_cross.colors = 6*bg
        else:
            if self.borderstyle=="flat":
                c = [min(bg[0]+8,255),min(bg[1]+8,255),min(bg[2]+8,255)]
            elif self.borderstyle=="gradient":
                c = h
            elif self.borderstyle=="oldshadow":
                c = h
            elif self.borderstyle=="material":
                c = s
            self.vlist_cross.colors = 6*c
        
        # Convenience variables
        sx,sy = self.widget.size
        x,y = self.widget.pos
        bx,by = self.border
        
        v1 = x+bx,      y+(sy-by*2)/2+by
        v2 = x+sx/2,    y+(sy-by*2)/4+by
        v3 = v6
        v4 = x+sx,      y+sy
        v5 = x+sx/2,    y+by
        v6 = x+bx,      y+(sy-by*2)/4+by
        
        self.vlist_cross.vertices = v2+v1+v6+v5+v4+v3"""
        
        # TODO: add better visual indicator
        
        v1 = x+bx*1.5,    y+sy-by*1.5
        v2 = x+sx-bx*1.5, y+sy-by*1.5
        v3 = x+bx*1.5,    y+by*1.5
        v4 = x+sx-bx*1.5, y+by*1.5
        
        self.vlist_check.colors = self.checkcolor*4 if self.widget.pressed else i*4
        self.vlist_check.vertices = v3+v4+v2+v1
if not self.widget.pressed:
            self.vlist_cross.colors = 6*bg
        else:
            if self.borderstyle=="flat":
                c = [min(bg[0]+8,255),min(bg[1]+8,255),min(bg[2]+8,255)]
            elif self.borderstyle=="gradient":
                c = h
            elif self.borderstyle=="oldshadow":
                c = h
            elif self.borderstyle=="material":
                c = s
            self.vlist_cross.colors = 6*c
        
        # Convenience variables
        sx,sy = self.widget.size
        x,y = self.widget.pos
        bx,by = self.border
        
        v1 = x+bx,      y+(sy-by*2)/2+by
        v2 = x+sx/2,    y+(sy-by*2)/4+by
        v3 = v6
        v4 = x+sx,      y+sy
        v5 = x+sx/2,    y+by
        v6 = x+bx,      y+(sy-by*2)/4+by
        
        self.vlist_cross.vertices = v2+v1+v6+v5+v4+v3