It took a while to figure out this magic.
`textual run --help` says:
> If you are running a file and want to pass command line arguments, wrap the
> filename and arguments in quotes:
>
> textual run "foo.py arg --option"
But it doesn't describe how to handle those arguments.
It's a bit verbose, but for Open, I wanted the _dialog part since "open"
can be both a verb and an adjective, and I didn't like it reading as an
adjective. It doesn't technically disambiguate it, but it reads better.
Verb "[to] open", noun "[dialog to] open", adjective "[part of the dialog to] open"
Adjective "[is] open", noun "[dialog that is] open", adjective "[part of the dialog that is] open"
Anyways this commit just makes it consistent.
Perhaps I could use classes more in place of IDs.
A Textual layout bug is unfortunately making the Yes button HUGE,
and the No button INVISIBLE, until you mouse over the dialog, which is
pretty funny...
"<file> already exists. Do you want to replace it? [Yes]"
These are pretty good candidates, paired together.
For the Free-Form Select icon (⢼⠮), I'm specifically imitating the
asymmetrical star shape from MS Paint.
* Implemented the Fill With Color tool using the algorithm described as
"combined-scan-and-fill span filler" on Wikipedia.
* I added handling for the affected region being None, which turned
out more complicated than I would like...
Some cases may be able to be simplified or removed.
* Also, I moved event.stop() to the top so I don't need to call it in
multiple places when there are multiple return points.
You could imagine having a brush with momentum, that swings around the
mouse without always reaching it. But it's just generally clearer to
not have an inadequate initial region that's then extended.
