Hello, for change the colors you need use the menu image-->adjust and the it depends, Tone/Saturation change this, and add strong to the colors, you can use in some specific colors or in all the image.
You can change there too the levels to control dark medium and light lights. And in selective correction you can add or subtract primary colors and secondary colors, gray, black or white. You need play with all it until you get the color that you want. I use a reference image and move until I get near colors.
Sometimes you need use mask, that is select only a part or color for avoid broken others, but this need more time, sometimes the automatic selection did the work.
And finally you can use the brush, selecting the color or tone mode, for pain only a color, you can use opacity for example with a 20% or 30% and paint some colors if they do not look as you want. Until the result is good. I recommend always duplicate the layer to work, because for sure you broken sometimes some colors or parts, and then you can duplicate the original and try again, especially at the beginning. Or copy again the zone that you need.
You can begin with the title layer in selective correction, adding or subtracting colors to yellow and red, to change the tone to fit the colors with the other box titles.
I hope that you enjoy with the try and error
, if you learn about it, it can be very useful. And I hope to see your boxes here.
Regards.