Sure, paste this into the config file in place of the existing colors - ~/.config/kicad/eeschema
on Linux, not sure where on other systems.
ColorWireEx=rgb(88, 110, 117)
ColorBusEx=rgb(38, 139, 210)
ColorConnEx=rgb(88, 110, 117)
ColorLLabelEx=rgb(88, 110, 117)
ColorHLabelEx=rgb(133, 153, 0)
ColorGLabelEx=rgb(159, 37, 35)
ColorPinNumEx=rgb(7, 54, 66)
ColorPinNameEx=rgb(7, 54, 66)
ColorFieldEx=rgb(101, 123, 131)
ColorReferenceEx=rgb(101, 123, 131)
ColorValueEx=rgb(101, 123, 131)
ColorNoteEx=rgb(38, 139, 210)
ColorBodyEx=rgb(0, 43, 54)
ColorBodyBgEx=rgb(238, 232, 213)
ColorNetNameEx=rgb(132, 132, 132)
ColorPinEx=rgb(0, 43, 54)
ColorSheetEx=rgb(132, 0, 132)
ColorSheetFileNameEx=rgb(181, 137, 0)
ColorSheetNameEx=rgb(0, 132, 132)
ColorSheetLabelEx=rgb(133, 153, 0)
ColorNoConnectEx=rgb(38, 139, 210)
ColorErcWEx=rgb(133, 153, 0)
ColorErcEEx=rgb(220, 50, 47)
ColorGridEx=rgb(171, 171, 171)
ColorBgCanvasEx=rgb(253, 246, 227)