For .2 layer height, go to your supports tab, enable advanced settings, scroll down and find top Z distance and change to .245, set support wall loops to 2, set top interface layers to 2, set interface pattern to rectilinear interlaced. Optionally, you can change Support x/y distance but thats user discretion, it just tells the slicer how close or far you would like the trees to be created in relation to the model. Another option is increasing your top interface layers to 3 but I find that 2 is enough. Your layer height will be the determining factor for your support settings, all you’re doing is effectively decreasing the distance value of the support layers and the model so that they break away easier. Experimentation will be a good idea.