Playing with the column of colour
The joy of the column of colour is that because it elongates, just by being an unbroken vertical line, it doesn’t have to be all dark, you can do a lighter coloured version should you wish to. Sure a darker column will be more slimming (and remember it doesn’t have to be black), but it’s not the only way.
If you want to wear your light/white tops, wear the column on the outside (in summer can you add a small vest to create the column?).