Add YaruBackButtonTheme & YaruBackButtonStyle (rounded vs. square)

[jpnurmi]

Square	Rounded

[Feichtmeier]

That's nice! It's just a little bit too big IMO

[Feichtmeier]

....styleFrom(fixedSize: const Size(40, 40), ...),

should fit better IMO

[jpnurmi]

YaruBackButton uses a YaruIconButton that already has a fixed 40x40 size.

https://github.com/ubuntu/yaru_widgets.dart/blob/8010f16248fbb1e4ee0479da7994b67e4d92ad65/lib/src/controls/yaru_icon_button.dart#L12

https://github.com/ubuntu/yaru_widgets.dart/blob/8010f16248fbb1e4ee0479da7994b67e4d92ad65/lib/src/controls/yaru_icon_button.dart#L45

[Feichtmeier]

YaruBackButton uses a YaruIconButton that already has a fixed 40x40 size.

https://github.com/ubuntu/yaru_widgets.dart/blob/8010f16248fbb1e4ee0479da7994b67e4d92ad65/lib/src/controls/yaru_icon_button.dart#L12

https://github.com/ubuntu/yaru_widgets.dart/blob/8010f16248fbb1e4ee0479da7994b67e4d92ad65/lib/src/controls/yaru_icon_button.dart#L45

Woops, right, but I think "Center" is what really forces it to not expand anymore. Could we put this here aswell or is this weird?

[jpnurmi]

Center forces it a bit smaller but depending on the context, I think it's still too large...

[jpnurmi]

Using YaruIconButton directly to be able to customize:

YaruIconButton(
  iconSize: 32,
  padding: EdgeInsets.zero,
  onPressed: Wizard.of(context).back,
  icon: const Icon(YaruIcons.go_previous),
)

[Feichtmeier]

IMO that's a good size 👍
but let's ask the others @Jupi007 @madsrh

[Jupi007]

LGFM 👍

[jpnurmi]

Here they are, side by side for comparison :)

Screencast.from.2023-01-19.14-43-34.webm