Used the color selector. Drew a circle, so far so good. Duplicated the layer, tried to slide the circle across using Shift to fix the axis but seemed to select

Used the color selector. Drew a circle, so far so good. Duplicated the layer, tried to slide the circle across using Shift to fix the axis but seemed to select all UI elements in the browser (like I was selecting text). Duplicated shape was misaligned so hit Undo and ended up jumping back 2-3 operations - my second duplicated layer was gone and the first layer, while still existing, did not appear to contain any information. Tried to draw an ellipse but the circle tool seems to use a fixed radius. Erased shape using eraser, difficult to see brush size as it's a crosshair that does not indicate the size. Had the idea of drawing a circle on a new layer and scaling the layer horizontally, but it does not appear to be possible to transform a layer. Dragged layer to Delete but it did not delete. Deleting layer from Layer menu did work though. Drew another shape and tried fill tool to fill in with color, but it did not detect the polygon boundaries and filled the full screen. Looked for a "Filled polygon" option but the Shapes box seems to only allow selection of one option ("Polygon"). Interesting proof of concept, don't think I'll be able to use it for real work any time soon though. (Chrome, OS/X)