Add a button in the color palette UI
(that can be found in the bottom toolbar
under "Styles" -> "Font Color"/"Highlight Color"
when experimental editing mode is enabled) which
allows setting auto color for the font
or the highlighting/background.
This allows to unset any explicitly set color and
use the automatic color.
This is equivalent to the "Automatic"/"No fill color"
items in the font color and character highlighting
color popups in the desktop version.
Add a `boolean keepAlpha` param to
`sendFont{,Back}ColorChange` to be able
to distinguish between "auto color" and white
when -1/0xFFFFFFFF is passed as color.
See also previous commit
Change-Id I2e6512f32e671f92c8d31b2780c350dd74fb0747,
"android: Handle auto color as such", for some more
context.
Change-Id: I05182a2adbc00e64b1925ff52861a51ba8dcc21f
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/133996
Tested-by: Jenkins
Reviewed-by: Michael Weghorn <m.weghorn@posteo.de>
e1381521c5