Comment 8 for bug 1194456

I found that "filtered - GL" wasted much time during color conversation from HSL to RGB, if the selected skin.xml does not provide a color for <SignalHighColor>, <SignalMidColor>, <SignalLowColor> ) like in Deere & Latenight skins.

In waveformsignalcolor.cpp, the fallBackFromSignalColor uses the HSL color space, which is converted to RGB in glwaveformrendererfilteredsignal.cpp .