property Panel.BackColorPercent as Color
Specifies the background color or the visual appearance of the percent bar in the panel.

TypeDescription
Color A Color expression that specifies the progress bar 's background color. The last 7 bits in the high significant byte of the color to indicates the identifier of the skin being used. Use the Add method to add new skins to the control. If you need to remove the skin appearance from a part of the control you need to reset the last 7 bits in the high significant byte of the color being applied to the background's part.
Use the BackColorPercent property to change the visual appearance of the progress bar in the panel. Use the Percent value to display a progress bar inside the panel. Use the BackColor property to change the visual appearance of the the panel using EBN files. Use the BackColorPanels property to assign the same visual appearance to all panels in the status bar. Use the ForeColor property to change the panel's foreground color.

The following VB sample shows "How can I change the color of the percent or a progress-bar inside the panel": 

With StatusBar1
	.BeginUpdate 
	.VisualAppearance.Add 4,"c:\exontrol\images\border.ebn"
	.VisualAppearance.Add 5,"CP:4 1 1 -1 -1"
	.BackColorPanels = 83886080
	.BackColor = -2147483633
	.Format = "1/2,(24;5/6)"
	With .Panel(5)
		.Text = "15%"
		.Percent = 15
		.BackColorPercent = 255
	End With
	.EndUpdate 
End With
The following VB.NET sample shows "How can I change the color of the percent or a progress-bar inside the panel": 
With AxStatusBar1
	.BeginUpdate 
	.VisualAppearance.Add 4,"c:\exontrol\images\border.ebn"
	.VisualAppearance.Add 5,"CP:4 1 1 -1 -1"
	.GetOcx().BackColorPanels = &H5000000
	.GetOcx().BackColor = &H8000000f
	.Format = "1/2,(24;5/6)"
	With .get_Panel(5)
		.Text = "15%"
		.Percent = 15
		.BackColorPercent = 255
	End With
	.EndUpdate 
End With
The following C++ sample shows "How can I change the color of the percent or a progress-bar inside the panel": 
/*
	Copy and paste the following directives to your header file as
	it defines the namespace 'EXSTATUSBARLib' for the library: 'ExStatusBar 1.0 Control Library'

	#import "C:\\WINNT\\system32\\ExStatusBar.dll"
	using namespace EXSTATUSBARLib;
*/
EXSTATUSBARLib::IStatusBarPtr spStatusBar1 = GetDlgItem(IDC_STATUSBAR1)->GetControlUnknown();
spStatusBar1->BeginUpdate();
spStatusBar1->GetVisualAppearance()->Add(4,"c:\\exontrol\\images\\border.ebn");
spStatusBar1->GetVisualAppearance()->Add(5,"CP:4 1 1 -1 -1");
spStatusBar1->PutBackColorPanels(83886080);
spStatusBar1->PutBackColor(-2147483633);
spStatusBar1->PutFormat(L"1/2,(24;5/6)");
EXSTATUSBARLib::IPanelPtr var_Panel = spStatusBar1->GetPanel(long(5));
	var_Panel->PutText(L"15%");
	var_Panel->PutPercent(15);
	var_Panel->PutBackColorPercent(255);
spStatusBar1->EndUpdate();
The following C# sample shows "How can I change the color of the percent or a progress-bar inside the panel": 
axStatusBar1.BeginUpdate();
axStatusBar1.VisualAppearance.Add(4,"c:\\exontrol\\images\\border.ebn");
axStatusBar1.VisualAppearance.Add(5,"CP:4 1 1 -1 -1");
(axStatusBar1.GetOcx() as EXSTATUSBARLib.StatusBar).BackColorPanels = 0x5000000;
(axStatusBar1.GetOcx() as EXSTATUSBARLib.StatusBar).BackColor = 0x8000000f;
axStatusBar1.Format = "1/2,(24;5/6)";
EXSTATUSBARLib.Panel var_Panel = axStatusBar1.get_Panel(5);
	var_Panel.Text = "15%";
	var_Panel.Percent = 15;
	var_Panel.BackColorPercent = 255;
axStatusBar1.EndUpdate();
The following VFP sample shows "How can I change the color of the percent or a progress-bar inside the panel": 
with thisform.StatusBar1
	.BeginUpdate
	.VisualAppearance.Add(4,"c:\exontrol\images\border.ebn")
	.VisualAppearance.Add(5,"CP:4 1 1 -1 -1")
	.BackColorPanels = 83886080
	.BackColor = -2147483633
	.Format = "1/2,(24;5/6)"
	with .Panel(5)
		.Text = "15%"
		.Percent = 15
		.BackColorPercent = 255
	endwith
	.EndUpdate
endwith