Add feedback when user picks a color from the table or from the set
custom colors.
Fix hand hovering tablet when entering the app (stopped working after
restoring brush values).
Remove dynamic rotation and translation brushes since the movement would
be unsynced after a while, resulting in a poor user experience.
Fix restoring last used settings taking to long, which caused the user
to see the values to change after the tablet application was open.
Fix using a different brush after restarting the app, if drawing before
the brush was reset.
Fix multiple dynamic brushes not working in some cases (mixing axis
would not work neither for rotation nor for translation);
Fix tablet hovering detection only working for right hand;
hovers the tablet.
Replace OK button in color picker with Add button (allows user to add custom
colors, and enables user to pick color just by pressing on top of the
color picker);
