draw 96 line MAs with only 100 line code - page 2

[Loong]

Rosh   :

It's difficult to say, see for example indicator ColorLine

Rosh, the example indicator ColorLine seem cannot explain this question.

I know I can set a buffer to save color,
and set a indicator_colorN to save available color value series,
and match up them with

PlotIndexSetInteger(0,PLOT_LINE_COLOR,0,Red);

But when I write

PlotIndexSetInteger(plot_index, PLOT_COLOR_INDEXES, prop_value);

without "#property indicator_color1 " and color buffer,
what means the prop_value?
which array's index is prop_value?

(Web-colors set seem to have 8*16.5=132 member.)
In "MQL5 Reference / Custom Indicators / SetIndexBuffer",
there said "You can specify up to 64 colors in the #property indicator_colorN line."
But now, available value of prop_value is only between 1 and 63.