Update splash for Blender 3.x development series

CC-BY Blender Studio https://studio.blender.org

Update the splash artwork for the daily builds (`master`) to
celebrate the beginning of a new major series in Blender.

The badges of the Development Fund membership levels have been removed for
a simpler design, and the font matches the one used elsewhere in blender.org

UI: Introduce View pie in more editors

#### Motivation

The View pie menu is a convenient way to access operators such as `Frame Selected` and `Frame All` which are usually mapped to `PERIOD` or `HOME` keys on the right side of most keyboard, making it hard hard to reach with the left hand.

The motivation for this patch comes from working with a 75% keyboard (no numpad). Most laptops face a similar problem.

#### Implementation

The View pie menu has been added to the following editors and sub-modes where applicable:

* Node Editor
* Video Sequencer
* Dopesheet
* Graph
* NLA
* Image
* Clip
* Outliner

More options could definitely be added to this menu for convenience, as long as it maintains the common options in the same place (Frame Selected on the left, Frame All on the right).

For positioning I went with the following layout:
{F11791186, size=full}

I've added `Zoom 1:1`to the Image Editor and the VSE Preview since there is no way to reset the zoom on keyboards without numpad (unless Emulate Numpad is turned on).

The Outliner uses `Show Active` and `Show Hierarchy` which are the closest ones to the equivalent in other editors. Should `Show Active` be renamed to `Frame Selected`?

The shortcut assigned is the same as the 3D Viewport (`ACCENT_GRAVE`).

#### Screenshots

Node Editor
{F11778387, size=full}

Dopesheet
{F11778400, size=full}

Graph
{F11778403, size=full}

Image Editor (Paint and View)
{F11791113, size=full}

Image Editor (Mask)
{F11791114, size=full}

UV Editor
{F11791119, size=full}

Clip Editor (Tracking)
{F11791137, size=full}

Clip Editor (Mask)
{F11791140, size=full}

Clip Editor (Graph)
{F11791151, size=full}
View operators are not yet implemented in Clip Editor Dopesheet mode (left a note about this in the menu poll).

Reviewed By: #user_interface, campbellbarton

Differential Revision: https://developer.blender.org/D13169

Merge branch 'blender-v3.0-release'

Cleanup: Remove `SMALL_TRI_RIGHT_VEC` icon

Since the recent change to context paths to use the arrow icon instead of the triangle (D13106),
the `SMALL_TRI_RIGHT_VEC`is no longer used. This patch removes the icon and all references.

- Replace `SMALL_TRI_RIGHT_VEC` with `RIGHTARROW` in Freestyle UI
- Remove references to `SMALL_TRI_RIGHT_VEC` and `ICON_SMALL_TRI_RIGHT_VEC`.

Fix for built-in add-ons has been done in rBAcc2f71bfe9b0/rBAa84028f8a89a.

This will be added to the list of breaking changes [[ https://wiki.blender.org/wiki/Reference/Release_Notes/3.0/Python_API#Breaking_Changes | in the Wiki ]].

Reviewed By: Severin

Differential Revision: https://developer.blender.org/D13130

UI: Fix minor theme mismatch

Pie menu got wrong item highlight and options settings were outdated.

UI: Fix minor theme mismatch

Pie menu got wrong item highlight and options settings were outdated.

Merge branch 'blender-v3.0-release'

UI: Use arrow icon on context paths

The current `ICON_SMALL_TRI_RIGHT_VEC` uses dark hard-coded colors ([`0.2`, `0.2`, `0.2`])
which makes it impossible to theme and hard to see in dark contexts.

Use `ICON_RIGHTARROW` to match the Outliner's breadcrumbs. This icon uses `TH_TEXT` so it's visible as long as the rest of the text is.

##### Master
(Properties editor background made red on purpose to be able to see the triangle icon)
{F11713038, size=full}

#### This patch
{F11713039, size=full}

Reviewed By: #user_interface, Severin, HooglyBoogly

Maniphest Tasks: T92771

Differential Revision: https://developer.blender.org/D13106

Merge branch 'blender-v3.0-release'

VSE: Remove separator lines between rows

The VSE grid theme setting is currently used for two things:

* Indicate time intervals (vertical lines)
* As separator between channels (horizontal lines)

This adds visual noise because for the time interval to be visible, the
grid color needs to be bright, resulting in a rectangle-grid backdrop.

Recently, the VSE got a theme setting to customize alternate-row background color.
This should be sufficient to tell the channels apart without the need for a line in between.

Additionally, this patch makes the VSE background use the theme setting as-is,
without hard-coded darkening, to ease the tweaking of themes. This aligns the style
of the VSE backdrop with the rest of Blender (Outliner rows, File Browser, Spreadsheet,
Info and animation editors).

Related reports: T92581
Related task: T92792

#### Before
{F11680317, size=full}

#### After
{F11694981, size=full}

Reviewed By: #user_interface, Severin

Maniphest Tasks: T92581

Differential Revision: https://developer.blender.org/D13072