You can customize colors of:
     - Background chart
     - Background
     - Foreground
     - Grid
     - Bull candle (changed to green by default)
     - Bear candle
     - Line graph
     - Pen graph
     - Main Title
     - Sub Title
     - X Axis Title
     - Y Axis Title
     - Copyright mark
     - Labels
     - Legend
     - Axes
     - Background of the separate indicator canvas
- You can also choose a Color scheme:
     - QChartist default
     - Yellow On Black
     - Green On Black
     - Black On White
In menu Tools > Settings :
You can draw X and/or Y axis grids on your charts
Examples: