Use this page to change the overall look and feel of your IDE.
Select the UI theme from the list. By default, you can choose between a light, a dark, and a high-contrast theme. You can install other themes as plugins. For more information, see User interface themes.
Sync with OS
Select this checkbox to let RubyMine detect the current system settings and use the default dark or light theme accordingly.
Use custom font
Specify custom font family and size to use in the RubyMine UI.
Support screen readers
Enable screen reader support for RubyMine. For more information, see Accessibility.
Use contrast scrollbars
Make the editor scrollbar more visible.
Adjust colors for red-green vision deficiency
Adjust UI colors to better perceive colors in case of protanopia and deuteranopia.
Show tree indent guides
Display vertical lines that mark indent levels in tree views, for example, in the Project tool window. These lines can help you better understand the hierarchy of the components in your project.
Use smaller indents in trees
Decrease the amount of space between the tool window border and the text in tree views, for example, in the Project tool window.
Enable mnemonics in menu
Underline hotkeys that you can press to execute a menu action
Enable mnemonics in controls
Underline hotkeys that you can press to use controls in dialogs
Scroll the UI smoothly, pixel-by-pixel, instead of line-by-line.
This also enables animated smooth scrolling for Windows and Linux by default. You can disable it to use precise scrolling instead: press Ctrl+Shift+A, find and open the Smooth Scroll Options dialog, and disable the Animated smooth scrolling checkbox.
In this dialog, you can also set the duration of the scroll animation and change the appearance of the animation based on https://cubic-bezier.com/#.17,.67,.83,.67.
Drag-and-drop with Alt pressed only
Avoid accidentally moving files, editor tabs, tool window buttons, and other UI components. When enabled, hold the Alt key to move things around.
By default, this option is disabled and you can move everything without any extra keys.
Always show full path in window header
Show the full path to the project and to the current file in the main window header. When disabled, the header will show only the name of the project and file.
Display icons in menu items
Show icons to the left of the items in the main menu and context menus.
Configure a custom background image for the IDE.
Select which antialising mode you want to apply to the IDE (including menus, tool windows, and so on):
Select which antialiasing mode you want to apply to the editor:
Show tool window bars
Show the tool window bars around the edges of the main window. For more information, see Tool window bars and buttons.
Show tool window numbers
Show tool window quick-access numbers on the tool window buttons.
You can hold the Alt key and press the corresponding number key to switch tool windows regardless of this setting: Alt+1 for the Project tool window, and so on.
Side-by-side layout on the left
Show the tool windows that are attached to the top and bottom edges on the left side in two columns. For more information, see Optimize for wide-screen monitors.
Side-by-side layout on the right
Show the tool windows that are attached to the top and bottom edges on the right side in two columns. For more information, see Optimize for wide-screen monitors.
Widescreen tool window layout
Optimize the layout of tool windows for wide-screen displays: maximize the height of vertical tool windows by limiting the width of horizontal tool windows. For more information, see Optimize for wide-screen monitors.
Select the font size for the presentation mode. After changing the font size, exit and enter the Presentation mode.