Last night I added support for the latest Nano Banana models - you can now choose from Pro, 2.1, and 2 Lite. Each give different results; my advice is always to test and experiment to find the right combination for your images.
I was pleasantly surprised by what 2.1 did with the warrior image in the promo flyer.
This is without any prompting, it's all one-click Presets. However, you can specify your own lighting configuration using the Custom preset, which shows an input field when selected.
Have fun with the new models!