Change the background color within script.

[galsermil]

I want to change the background color of my chart from within my NT8 script. Can you help me?

[bltdavid]

When using NinjaScript, you can change the background color
on the main chart panel for the current bar using BackBrush.

To change the background color of all panels, use BackBrushAll.

For previous bars, use BackBrushes or BackBrushesAll.

[galsermil]

This does not tell me how to change all bars.

[bltdavid]

This does not tell me how to change all bars.

Well, you could just change the background color of each bar,
one at a time, inside OnBarUpdate -- and just keep using the
same color each time -- I mean, just use OnBarUpdate to set
the background to the same color, one bar at time.

Remember, BackBrush and BackBrushAll are continually
updated to refer to the background color of the most recently
closed bar.

Otherwise if you want to change the background of all bars
at once, you have to use your programming skills.

How so? Use the plural variant and set the background color
in a loop, for each bar, like this,

for (int indx = 0; indx < CurrentBar; ++indx)
    BackBrushes[indx] = Brushes.LightSkyBlue;

Make sense?

[bltdavid]

Oh, wait ...

Maybe you mean this.

Scroll down to 'ChartBackground'.

[galsermil]

This is my second attempt at solving this mystery. When I first advised of this this loop solution, my script merely skipped over it but I was not surprised as my CurrentBar was 15641. That is a lot of bars to process.

[UltraNIX]

This is my second attempt at solving this mystery. When I first advised of this this loop solution, my script merely skipped over it but I was not surprised as my CurrentBar was 15641. That is a lot of bars to process.

Then a solution could be to process just those bars that are visible on screen, but then, if you scroll back, previous bars would not have that color.

Tip#2: if you choose OnBarUpdate solution, make sure, you are not using it within backtest/optimization, as it's fully redundant to render any colors and it would eat up lots of space.