Hello, I'd like to suggest the change of the blend tool icon, back to the "original" icon: a simple square with a gradient in it. The kitchen blender is not a very good visual metaphor (to quote Akk on irc "That's not what the tool does, anyway -- it doesn't blend all the colors in the image into a single uniform color like a blender would." ) and doesn't translate well.
About the eraser icon, in the Color theme there's a mysterious grey dot on it, zooming on the svg file I saw it was a little design on top of the eraser. It's a nice detail but in a small icon it's more confusing than anything. A plain eraser would probably be better. Regards -- Aurore