256    function createColorGradientPalette($R1,$G1,$B1,$R2,$G2,$B2,$Shades)  argument
258      $RFactor = ($R2-$R1)/$Shades;
324        $R2 = $R-15; if ( $R2 < 0 ) { $R2 = 0; }
328        $LineColor =$this->AllocateColor($this->Picture,$R2,$G2,$B2);
1229 …function drawPlotGraph($Data,$DataDescription,$BigRadius=5,$SmallRadius=2,$R2=-1,$G2=-1,$B2=-1,$Sh…  argument
1236      $Ro = $R2; $Go = $G2; $Bo = $B2;
1247        $R2 = $Ro; $G2 = $Go; $B2 = $Bo;
1293                if ( $R2 !=-1 && $G2 !=-1 && $B2 !=-1 )
1294                 $this->drawFilledCircle($XPos+1,$YPos+1,$SmallRadius,$R2,$G2,$B2);
1297                  $R2 = $this->Palette[$ColorID]["R"]-15; if ( $R2 < 0 ) { $R2 = 0; }
1301                  $this->drawFilledCircle($XPos+1,$YPos+1,$SmallRadius,$R2,$G2,$B2);
1318 …cription,$YSerieName,$XSerieName,$PaletteID=0,$BigRadius=5,$SmallRadius=2,$R2=-1,$G2=-1,$B2=-1,$Sh…  argument
1352          if ( $R2 !=-1 && $G2 !=-1 && $B2 !=-1 )
1353           $this->drawFilledCircle($X+1,$Y+1,$SmallRadius,$R2,$G2,$B2);
1356            $R2 = $this->Palette[$PaletteID]["R"]+20; if ( $R > 255 ) { $R = 255; }
1359            $this->drawFilledCircle($X+1,$Y+1,$SmallRadius,$R2,$G2,$B2);
3146      $R2   = ($RGB2 >> 16) & 0xFF;
3153      $Ra   = floor($R*$Alpha+$R2*$iAlpha);