Editor Appearance

When this checkbox is selected, any closing delimiter (bracket, brace, parenthesis or quote) is highlighted when the caret is:

• Immediately to the left of the corresponding opening delimiter if you selected at outer side.

• At any side of the opening delimiter if you selected at both sides.

You can also use the Highlight with radio buttons to choose one of two ways to highlight matching brackets and quotes: with color or with slightly less distinguishable outlines.

For more information, see Highlight Matching Delimiters.

Shows or hides the Action Bar.

Markers width (only available since Visual Studio 2013)

These radio buttons allow choosing relative width of the markers on the marker bar. They only apply when the Integrate into enhanced scroll bar (since Visual Studio 2013) option is selected.

When a type or a member has inheritors in the current solution, you can see it by the presence of a special icon (for example, ) that appears to the left of the declaration. You can click the icon to expand the list of derived symbols and navigate.

To detect inheritors of members on the fly and to display the corresponding gutter mark, ReSharper has to perform some calculations. Large inheritance hierarchies with the combination of weak hardware could lead to some performance degradation. If this is the case, you can clear this checkbox to avoid complex calculations and thus improve performance.
On the other hand, on-the-fly calculation of type inheritors is much cheaper performance-wise and therefore is not disabled.

If you choose to disable the gutter marks, you can always use explicit navigation commands — Go to Derived Symbols Ctrl+Alt+B and Go to Implementation Ctrl+Shift+Alt+B — to study derived members, or visually explore full inheritance hierarchy of the current member.

Replace Visual Studio tooltip

This option lets you replace Visual Studio symbol tooltips, which appear when you hover the mouse over code symbols in the editor (quick info), with ReSharper tooltips.

You may want to disable this option if you prefer to see native Visual Studio tooltips or if you use Productivity Power Tools extension.

Visual Studio and ReSharper tooltips basically provide similar information about the symbol you are hovering the cursor over. The Visual Studio tooltip is different in different Visual Studio versions.

If you disable ReSharper syntax highlighting (by clearing the Color Identifiers checkbox on the Code Inspection | Settings page of ReSharper options), ReSharper tooltips will also be disabled.