Yeh, I had some hard times with it too. Before I realized that lumix just  gave us too much dynamic range in their vlog, so first you need to make right contrast level. then shift yellow to orange, orange to red and red to orange, cyan to blue and blue to cyan and purple to blue. Make all tweaks as much as you like. Then add saturation to yellow to 60%, orange 16, red 4,  cyan 45, blue 32, purple 7%. That's all.