that isn't that easy. You would have to amend the python file.
EpgList.py
res.extend((
(eListboxPythonMultiContent.TYPE_PROGRESS, r2.x+fact3, r2.y, r2.w-fact3*2, r2.h, percent, borderw),
(eListboxPythonMultiContent.TYPE_TEXT, r3.x, r3.y, fact1, r3.h, 1, RT_HALIGN_RIGHT|RT_VALIGN_CENTER, _("%s%d min") % (prefix, remaining))
))
-------
variable allowed for eListboxPythonMultiContent.TYPE_PROGRESS
def MultiContentEntryProgress(pos = (0, 0), size = (0, 0), percent = None, borderWidth = None, foreColor = None, foreColorSelected = None, backColor = None, backColorSelected = None):
color format would be like 0x123456
so you would have something like
(eListboxPythonMultiContent.TYPE_PROGRESS, r2.x+fact3, r2.y, r2.w-fact3*2, r2.h, percent, borderw, foreColor = 0xf2d320, foreColorSelected = 0x12336e):wow:,