What is the MT4 default simple panel?
You can use a rectangle label and set the background colour
bool ChartBackColorSet(const color clr,const long chart_ID=0)
//--- reset the error value
//--- set the chart background color
//--- display the error message in Experts journal
Print(__FUNCTION__+", Error Code = ",GetLastError());
//--- successful execution
You can change the color in the class libraries. But your changes might be overwritten by an update. So you also have to change the filenames and the include statements. and check if there are bug-fixes with the updates und you have to include this fixes manually.
Or you change the color of each object just after you created them.
The best way is to write you own classes based on the library to do your changes, but you have to be scilled in OOP.
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