Blender Git Loki

Merge branch 'master' into userpref_redesign

More tweaks to Preferences

* Brighter navigation bar background to avoid conflicts with subpanel backgrounds
* Group together device input settings into one panel (with sub-panels)
* Group together view manipulation settings into one panel (with sub-panels)
* Move Save Preferences button back to header until own region for it is ready

Merge branch 'master' into userpref_redesign

Merge branch 'blender2.8' into userpref_redesign

Use term "Preferences" instead of "User Preferences" in the UI

More small tweaks/fixes to new Preferences

* Fixed gap in Viewports panel
* Made all buttons to install things (Addons, Lights, Keymaps, Themes etc) use the same icon and use elipses (...) to communicate the fact that they open a dialog.
* Fixed own code error in Input > View panel
* Re-ordered panels in Input section - now related Mouse and Devices panels are next to each other
* Renamed User Preferences in the Editor list to just Preferences - consistent with Edit > Preferences
* Removed icon for auto-key toggle - doesn't fit here

Hide Preferences header when opened in temporary window

Also, use full width of the area again for the header.

Remove colons in Preferences section group names

Shrink horizontal size of Preferences Window

Various improvements to Preferences buttons/layouts

* Header is now fully redundant. Added buttons to add studio lights under the Lights category.
* Removed redundant theme category dropdown
* Made the theme layout use layout flow, so it goes to single column when narrow, but multiple columns as you make it wider
* Made all the themes layouts consistent and all use property split fit with the rest of 2.8
* Fix UI Scale property so it doesn't flicker, by making it a number value rather than a slider - it's more correct this way anyway

Merge branch 'blender2.8' into userpref_redesign

Merge branch 'blender2.8' into userpref_redesign

Use subpanels for User Interface theme options

The widget color subpanels are dynamically generated.

Initial panel & subpanel based layout for theme section

Panels/subpanels for the editor theming are dynamically generated from the RNA
API.
Widget theming doesn't use subpanels yet.

Merge branch 'blender2.8' into userpref_redesign

Merge branch 'blender2.8' into userpref_redesign

Split keymap settings from "Input" into separate section

Adds a new section "Keymap" and puts keymap settings into this.

Use panel layout in most Preferences sections

Also removes all buttons from the header (except editor switch) and puts
them into the corresponding sections.

Breaks the input section which will be fixed in a followup commit.

Panel based, single column layout for the editing category

Merge branch 'blender2.8' into userpref_redesign