How to achieve a nice gradient of colours in vector or raster images? This seems to be quite a big difficulty in qgis whereas other programs have it built in, am I just doing something wrong or do they (almost) not exist. E.g. you have a digital elevation model and want to use suitable colours, can do it as greyscale easily enough but when it comes to colour there don't seem to be any readily available options. Then with vector data if you have a grid and want to colour it (similar to the raster DEM) there only seems to be one option - lime green to dark blue, otherwise you have to try to invent every category yourself which is a total pain if you don't have a nice gradient elsewhere to copy the individual rgb values from.
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