docs: Move GdkColor off into a deprecated section
docs: Move GdkColor off into a deprecated section

jadahl/gtk,jadahl/gtk,jessevdk/gtk,jigpu/gtk,jigpu/gtk,Lyude/gtk-,jadahl/gtk,jessevdk/gtk,Adamovskiy/gtk,Sidnioulz/SandboxGtk,chergert/gtk,ahodesuka/gtk,chergert/gtk,jigpu/gtk,ahodesuka/gtk,chergert/gtk,grubersjoe/adwaita,davidgumberg/gtk,Sidnioulz/SandboxGtk,jigpu/gtk,Sidnioulz/SandboxGtk,ahodesuka/gtk,davidgumberg/gtk,davidgumberg/gtk,jigpu/gtk,alexlarsson/gtk,jessevdk/gtk,ahodesuka/gtk,jadahl/gtk,Lyude/gtk-,Lyude/gtk-,alexlarsson/gtk,alexlarsson/gtk,davidgumberg/gtk,davidgumberg/gtk,alexlarsson/gtk,Sidnioulz/SandboxGtk,alexlarsson/gtk,alexlarsson/gtk,Adamovskiy/gtk,ahodesuka/gtk,jadahl/gtk,grubersjoe/adwaita,Lyude/gtk-,chergert/gtk,grubersjoe/adwaita,chergert/gtk,Adamovskiy/gtk,ahodesuka/gtk,jessevdk/gtk,davidgumberg/gtk,jigpu/gtk,chergert/gtk,Lyude/gtk-,grubersjoe/adwaita,grubersjoe/adwaita,Lyude/gtk-,alexlarsson/gtk,jessevdk/gtk,grubersjoe/adwaita,Sidnioulz/SandboxGtk,Adamovskiy/gtk,ahodesuka/gtk,grubersjoe/adwaita,Lyude/gtk-,davidgumberg/gtk,Adamovskiy/gtk,jessevdk/gtk,jadahl/gtk,chergert/gtk,jigpu/gtk,Adamovskiy/gtk,jadahl/gtk,Sidnioulz/SandboxGtk,jessevdk/gtk,Lyude/gtk-,ahodesuka/gtk,jadahl/gtk,alexlarsson/gtk,grubersjoe/adwaita,davidgumberg/gtk,jigpu/gtk,chergert/gtk,Adamovskiy/gtk,Adamovskiy/gtk