0.22.0

New:

• Clipboard.lastCopy is what was put on the clipboard last, with setText or by selecting text on the screen, so that a program can say that something was copied. Each copy is a value of its own.

Fixed:

• ProgressBar covers what is below it, also where it has no track color, rather than letting it show through the part still to fill.
• Keys which arrive at once, like the text an input method commits or a paste in a terminal without bracketed paste, all reach the program. Past 64 keys the earliest were dropped.
• Shift+Enter, and other keys which otherwise arrive as plain ones, are told apart in iTerm2, xterm, and tmux, which lack the Kitty keyboard protocol, through xterm's modifyOtherKeys. Shift+Enter arrived as Enter, so a TextField with onSubmit submitted instead of breaking the line.