title: How to set colors in MPAndroidChart?
body: <p>I'm using MPChartlib for a basic "Barchart" (3 bars and values between 0 and 100). </p>
  
  <p>the background of the app is dark so I'd like to put the text in white but when I set the text with color code "FFFFFF" in chart_color stored in string.xml but the text appear in dark blue.</p>
  
  <pre><code>   //Axe X
     XAxis x = barchart.getXAxis();
     x.setPosition(XAxisPosition.BOTTOM);
     x.setTextColor(R.color.chart_color);
     x.setAxisLineColor(R.color.chart_color);
  
  
     // Design
     barchart.setDragEnabled(false);
     barchart.setDrawGridBackground(false);
     barchart.setTouchEnabled(false);
     barchart.setHighlightEnabled(false);
     barchart.setMaxVisibleValueCount(101);
     barchart.setDescription(null);
     barchart.setGridBackgroundColor(R.color.chart_color);
  
     barchart.invalidate(); // refresh
  
     //Axe Y
     barchart.getAxisLeft().setAxisMaxValue(100);
     barchart.getAxisLeft().setDrawTopYLabelEntry(true);
     barchart.getAxisLeft().setDrawAxisLine(false);
     barchart.getAxisLeft().setDrawGridLines(false);
     barchart.getAxisLeft().setAxisLineColor(R.color.chart_color);
     barchart.getAxisLeft().setTextColor(R.color.chart_color);
  
     barchart.getAxisRight().setAxisMaxValue(100);
     barchart.getAxisRight().setDrawTopYLabelEntry(true);
     barchart.getAxisRight().setAxisLineColor(R.color.chart_color);
     barchart.getAxisRight().setTextColor(R.color.chart_color);
  </code></pre>
  
  <p>I tried lots of things and research but couldn't find the issue, does the lib doesn't use the same kind of color code or something ?</p>
  
  <p>Thanks for your help,
  Alex</p>