The BAM Editor is nice for contrast, saturation and brightness, and resizing, but bright colors are hard to see against its background. And I, for one, can't get it to trim frames. What's called trimming is actually enlarging the canvas. So for cutting, and most other things, I use Microsoft Paint. (Dodges two bananas and a tomato.) Yes, Paint! It does the job for basic bitmaps, only it saves PNGs as 24-million color, and then the BAM Editor refuses to read them. You've got to re-save the files as 256 colors in some other software, Paint could do it, but I don't trust Paint not to screw up the colors reducing them. On the up side, MS Paint handles transparency well. Before you save/re-save files as 256 colors, just make the background pure white and the BAM Editor will automatically treat it as transparent. No need to use special transparency tools. And Paint is rather convenient for ground icons, where you have to make a turquoise outline for the Tab highlight. You just zoom in on that that tiny icon in Paint, make a 0/255/255 color and draw a 1-pixel border around the icon, against a white background. Save/re-save, and the ground icon is good to go.