Thickness : Control the thickness of the indicator.Sharp: Add a small sharp border to the left.Border: Add a small rounded border to the left.Selected Indicator Style : Change the style of the indicator for selected item in trees.You can configure both the Left and Right indents.Custom Tree Indent : Fine tune indent of tree items.Custom Tree Items Height : Set custom line height in trees (min: 18, max: 44).Compact Fields: Reduce the size of fields, such as input, numeric and passwords.Custom List Items Height: Control the size of items in lists and dropdowns (min: 18, max: 48).Compact Menus: Reduce the size of the menus.Compact Dropdowns: Reduce the size of dropdowns.Compact Table Cells: Reduce the height of table headers and table cells.Compact Status Bar: Reduce the height of the status bar.Tab Separators: Add thin borders between tabs.Tabs Animations: Animate the tab indicator upon switching tabs.Custom Tab Font : Control the font and size of the Editor Tabs.

Tab Highlight Position : Customize the position of the tab highlighter.

Bold Active Tab : Make the Active Tab Bold.

Uppercase Tabs : Set the Editor Tabs in Uppercase.

Thickness : Set the active tab’s indicator thickness.

Active Tab Highlight Color : Customize the active tab’s indicator color.

Tabs Height: Customize the tabs’ height (between 25 and 60 pixels).Configure Custom Theme Colors: Open the settings page for the Custom Theme Colors.Override Accent Color: Change the accent color accordingly to the selected theme.Custom Accent Color: Set a custom accent color.High Contrast : Set a more pronounced contrast, by making the texts more prominent.Contrast Mode: Add contrast to specific panels and components.Selected Theme: Select a Theme from the prebundled themes.

Custominzing android studio theme