adding basic darkened gradient
messed up a git merge, no idea what's going on, manually undoing the merge-mare
Update README.md
Update README.md
adding some screenshots
adding some screenshots to the README
reducing image size
making the Ui an 'observer' and the monitoring tasks 'observable'
Update README.md
adding example chessboard mode (desktop version)
updated README with chessboard image
more chessboard images to README
Merge branch 'master' into issue14 (minor updates after merge)