$(toolkit_src_dir)/visuals/gradient/linear-gradient.cpp \
$(toolkit_src_dir)/visuals/gradient/radial-gradient.cpp \
$(toolkit_src_dir)/visuals/gradient/gradient-visual.cpp \
$(toolkit_src_dir)/visuals/gradient/linear-gradient.cpp \
$(toolkit_src_dir)/visuals/gradient/radial-gradient.cpp \
$(toolkit_src_dir)/visuals/gradient/gradient-visual.cpp \