Make the border go on top of the swatches so it blends with them and doesn't just create an ugly gray around them.
(It especially looked bad on the orange in the corner, which is around the same perceptive brightness as the gray.)
- Use modern sprites for tool icons and transparency options
- Use modern selection color for tool options
- Add a border around the canvas area to separate the canvas from the UI
- Slightly round the corners of the color wells and selected colors
Enable aliasing (nearest neighbor scaling) for more scenarios. This improves quality at some scales of the canvas and device pixel ratios, by re-enabling aliasing. In particular this avoids a browser bug in chrome where the canvas will jump back and forth between being antialiased and aliased, but only for these certain scenarios. Any time it's antialiased, it can also exhibit this bug in chrome.
Compromise for https://github.com/1j01/jspaint/issues/103
Note that this uncovers weird buggy browser behavior where canvas HiDPI state is remembered per undo state, and can fluctuate based on mouse presses (often makes it go antialiased) and undoing (often makes it go aliased), and it can even go partially antialiased, in redraw regions as you paint.
Also it definitely needs additional handling for the canvas itself, which can have a magnification factor.
Isaiah Odhner