I'm talking in the context of working with the framework, not how the widgets are implemented. When i write "Qt and wxWidgets already do" it should be obvious i

I'm talking in the context of working with the framework, not how the widgets are implemented. When i write "Qt and wxWidgets already do" it should be obvious i refer to something they both share, not something they differ. There are many differences in how all the mentioned frameworks, there isn't a point of comparing them down to that detail. FWIW the majority of LCL is also designed in the mid-90s as it is really a clone of VCL which was designed with Windows in mind and has a lot of Windows-isms (e.g. TColor is 24bit only, no alpha channel, the extra byte is used - like with Windows - to encode a pseudocolor to be translated in one of user-defined colors ... from back when Windows allowed users to modify the color palette, but anyway).