This changes all of the icons from png to svg. With svgs, scaling is
unlimited. With the svgs, the issue of the @ symbols with the Windows
updater is no longer an issue.
I changed the colors of the icons to a light gray (#d2d2d2), in the
dark themes, because I thought they looked better with this color.
The mute, unmute, plus, minus, up, down and expand icons are from the
Feather Icons set. https://feathericons.com/
The visibility icon is from the Octicons set. https://octicons.github.com/
The locked and unlocked icons are from the Open Iconic set.
https://github.com/iconic/open-iconic
Fixes an issue with horizontal scrollbar when it was hard to drag it by
mouse in Acri theme, because active area was thinner than the visible
scroll handle.
Adds the ability to set the current palette for the program via adding
"OBSTheme" objects to the qss files. The values for the OBSTheme object
are the values used by QPalette::ColorRole.
Modifying the global palette allows the ability to easily/quickly look
up application theme colors (especially if you would like to use them
for QML), as well as the ability to fix the hyperlink color issue. (On
dark themes, links would still be dark blue, causing them to be
difficult to see)
Fixing a reference to Rachni theme folder, some minor tweaks and
reverting volume meter foreground colors to original brightness.
Closesjp9000/obs-studio#1169
