Outline tree structure when using a mix of headings

[klor]

When the outline uses a mix of headings where some only have ##-headings without subheadings while others have ##-headings and ###-subheadings, then the tree structure menu is not shown as expected.

Steps to reproduce

# FooBar

## Foo
Observed: Shown without a DownArrow, slightly indented (as expected).

## Bar
Observed: Shown with a DownArrow, DownArrow increases the indent.
Expected: Indent is same level as any other ##-heading; DownArrow doesn't increase Indent.

### Bar 1
Observed: Indented to almost same level as Bar-parent (as expected).

### Bar 2

Expected result

When the outline uses a mix of headings where some only have ##-headings without subheadings while others have ##-headings and ###-subheadings, then DownArrow doesn’t affect how items are indented in the tree structure menu.

Actual result

When the outline uses a mix of headings where some only have ##-headings without subheadings while others have ##-headings and ###-subheadings, then the tree structure menu is not shown as expected.

Environment

Windows 10
Version: 1.1.9

Additional information

[WhiteNoise]

Outline formatting is misleading/misaligned when only some nodes have children

Obsidian 0.16.2 - standard Dark theme. Consider the following Markdown: # H1 - first # H1 - second ## H2 - Example 1 ## H2 - Example 2 # H1 - third # H1 - fourth Currently, this is rendered like this: (colored lines added for emphasis) [CleanShot 2022-09-05 at 12.13.15] It makes it appear as if H1 - second is a child of H1 - first, when in fact it isn’t. I don’t know if this can be fixed with CSS or if it requires under the hood changes.