How do I change the theme and layout?

Open the gear (⚙) at the top-right of the coding workspace and pick from the dropdown, or open the full settings page and click Appearance. From there you can change the Theme, the Sidebar size, which Active quadrants show, the Git sidebar side, the Preview placement, and apply one-click Layouts. Changes apply straight away.

Theme

The Theme row has three choices: dark, dracula, and light. New installs start on dracula. Click one to switch the whole app instantly. There is no separate "system" or "auto" theme; you pick one of the three.

Sidebar size

Sidebar size sets how wide the sidebars are, with four choices: none, narrow, medium, and wide. Pick none to hide them and give your terminals the full width. New installs start on medium.

Active quadrants

A quadrant is one of the terminal panels in the coding grid. Active quadrants shows a button for each quadrant in the tab you are on (Q1, Q2, Q3, Q4). A highlighted button means that quadrant is showing; click it to turn that quadrant off, and click again to bring it back.

If you turn them all off, the grid reads:

No quadrants enabled — open ⚙ to turn some on.

For more on quadrants, see What is a quadrant?.

Git sidebar

Git sidebar has two choices, left and right. This puts the git sidebar (changes, files, history, pull requests) on that side of the workspace. New installs put it on the left.

Preview placement

Preview placement controls how the app preview appears next to your terminals. Two choices:

• manual: each terminal gets its own preview in its row partner, so you can have up to two previews at once.
• follow: a single preview that retargets to whichever terminal you last clicked. New installs use follow.

When follow is selected, a smaller sub-choice appears underneath:

• Browser fixed on top: the browser always stays in the top row, and only the column flips when you change focus. This keeps a stable visual frame. This is the default.
• Browser follows active quadrant: the browser sits in the focused terminal's row partner, so it moves around more but stays closer to what you are working on.

See How do I open the preview to see my app?.

Layouts

Layouts are one-click presets that set several of the above at once (which quadrants show, sidebar size, preview placement, and which previews are open). There are three:

• Preview pair: "Q1 + Q3 terminals, Q2 + Q4 previews, sidebars on"
• Quad terminals: "All four quadrants, sidebars on, no previews"
• Solo: "Q1 terminal · Q2 preview · Q4 DevTools"

Click one and the layout changes in a single step. You can then fine-tune any individual control afterwards.

Default startup view (full page only)

Default startup view chooses where Codus opens. Last used returns to the previous view when available; you can also pick a named workspace. A view can be selected as the startup destination from the top-level More menu. This is separate from starring a view to keep it in the top bar.

Available views still depend on account access. A startup preference does not grant a module; Codus falls back to coding when the selected destination is unavailable.

How do I know it worked?

The change happens as you click, with no Save button and no restart. The theme swaps colours instantly; layout choices redraw the grid right away.

Common problems

• My theme did not stick after restart. It is saved automatically. If it reverts, you may have two codus windows open that disagree; close the extra window and set it once more.
• A chosen startup view opens coding instead. Check access to that destination. Email and other restricted workspaces are not available to every account. Look in More for an unpinned view before assuming it is disabled.