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Every tweak DiaTweaks adds to Dia. Turn them on and off in Dia → Settings → Patches, or with the diatweaks command.

Page

Tweak	What it does
Edge-to-Edge Web Pages	Removes the padding between pages and the window edge
Square Corners Next to Sidebar	Pages meet the sidebar with straight edges

Toolbar

Tweak	What it does
Hide Toolbar	Hides the address bar, navigation buttons and extensions
Show Toolbar on Hover	Shows the hidden toolbar when the pointer is at the top of the page
Show Toolbar on New Tabs	Keeps the hidden toolbar on new tab pages
Show Toolbar with Sidebar	Shows the hidden toolbar while the sidebar is open
Show Toolbar with Tabs at the Top	Keeps the toolbar with tabs at the top
Toggle toolbar visibility	⌃D hides or shows the toolbar
Show Loading Progress	Shows the loading glow along the top of the page while the toolbar is hidden
Hide Site Color in Tab Bar	Keeps the selected tab at the top in the page colour while the toolbar is hidden
Always Show Address Field	Keeps the address field's background and buttons showing
Hide Sidebar Button	Hides the sidebar button
Don’t Open Downloads List	Stops the downloads list opening by itself for each download
Hide Site Not Working Prompt	Stops the “not working correctly?” prompt after a few reloads
Extensions Shortcut	⇧⌘X opens a menu of your extensions

Sidebar & Tab Bar

Tweak	What it does
Profile Emoji	Shows an emoji in place of each profile's dot
Switch Profiles with ⌘1–9	⌘ and a number switches profile; the sidebar items move to ⌃
Translucent Sidebar	Lets the page show through the sidebar when it floats over it
Sidebar Grain	Adds a fine texture behind the sidebar or the tab bar
Compact Sidebar Header	Moves the pinned tabs up into the space under the window buttons
Compact Tab Rows	Makes sidebar rows as short as before Dia 1.57
Narrower Sidebar	Lets the sidebar shrink to 164 points
Hide Pinned Tab Border	Removes the colored border around the selected pinned tab
Hide Pinned Tab Card	Stops the card popping up when you point at a pinned tab
Hide Vertical Tab Glow	Removes the selected sidebar tab’s glow and gives its border one color
Collapse Pinned Tabs	Folds your pinned tabs away under a Pinned line, like Arc
Hide Group Background	Removes the grey behind open tab groups without a colour
Hide Recent Tabs Button	Hides the recent tabs button in the tab bar or sidebar
Show Repo on Pull Requests	Shows “repo #number” instead of the author on pull requests in GitHub live folders
Keep Folders Open	Reopens a folder that empties by itself, so new items show up
Open Sidebar Instantly	Opens the hidden sidebar the moment the pointer reaches the left edge

Tabs

Tweak	What it does
Tidy Tabs	Groups your tabs by what they're for, with Apple Intelligence
Unload Tabs	Unload a tab from its right-click menu, keeping it in the sidebar
Group Tabs by Domain	Groups a window's tabs by site, with commands to fold and ungroup them
Merge Subdomains	Puts a site's subdomains in one group
Close Tabs from Tab Switcher	W or ⌘W in the tab switcher closes the highlighted tab
Save Page As	Adds Save Page As… to the File menu, with ⌥⌘S
Undo Closing a Tab	Brings back a tab you just closed when you press ⌘Z
Pin Tab Shortcut	Pins the tab you’re on below your pinned tabs with ⌘D
Open New Tabs Next to Current	New tabs open next to the tab you’re on, and closing one takes you back
Mouse Back and Forward Buttons	Your mouse’s side buttons go back and forward, even when they send swipes
Hide Sleeping Tabs	Leaves closed pinned tabs out of the ⌃⇥ switcher
Close Button on Pinned Tabs	Shows the close button when you point at a pinned tab outside a folder
Minus Button on Open Pinned Tabs	Shows a – that closes the page and keeps the pinned tab

Command Bar

Tweak	What it does
Compact Command Bar	Fits the command bar on one line when its buttons need chat usage
Compact with Chat Usage Too	Compacts the command bar even when you have chat usage
Open New Tabs in Command Bar	Opens a new tab as Dia's command bar over the page you're on
Blur Page Behind	Blurs the page behind the command bar
Darken Page Behind	Darkens the page behind the command bar
Shadow Behind Bar	Adds a shadow behind the command bar, like Arc
Scroll Page Behind	Scrolls the page behind the open command bar, like Arc
Remember What You Typed	Brings back what you typed when you open the command bar again
Hide History Suggestions	Leaves visited pages out of address and command bar suggestions

New Tab Page

Tweak	What it does
Hide New Tab Logo	Hides the Dia logo above the search field

AI

Tweak	What it does
Turn Off AI	Turns off every AI feature in Dia, and cuts it off from its AI servers
Hide Chat Button	Hides the Chat button in the toolbar
Hide Chats Button	Hides the Chats button in the tab bar or sidebar
Hide Upgrade Banner	Hides the chat upgrade banner under the command bar
Hide Personalize Button	Hides the Personalization button on new tab pages
Hide Skills Suggestions	Hides the Skills buttons under the search field

Window

Tweak	What it does
Window Material	Shows a material or Liquid Glass behind the tabs and sidebar
Keep Windows Active	Keeps a window's shadow, sidebar colour and window buttons after you click away
Drag Window from Page	Moves the window when you drag an empty spot at the top of a page
Window Corners	Rounds windows like other apps on macOS 26, or to any radius down to square
Dock Click Shows Existing Window	A Dock click goes to the window Dia already has on another Desktop
Hide Window Controls	Hides the close, minimize and zoom buttons
App Icon	Gives Dia a different icon, in any of macOS’s icon styles

Passwords

Tweak	What it does
Allow 1Password	Lets the 1Password extension connect to the 1Password app
Allow iCloud Passkeys	Signs in with passkeys saved in Apple Passwords
Allow iCloud Passwords	Lets the iCloud Passwords extension fill your Apple Passwords

Links

Tweak	What it does
Peek on Shift-Click	Shift-click a link to preview it in a card over the page, like Arc
Peek from Pinned Tabs	Opens links that leave a pinned tab's site in Peek
Drag Links to Peek	Drop a dragged link on the card above it to open it in Peek
Little Dia	Opens links from other apps, or any link you right-click, in a small window, like Little Arc
Close with Escape	Closes the Little Dia window with Escape
Hide Link Address	Hides the address that shows when you point at a link

Adding a tweak

Start a page titled as the tweak is in Settings, paste in the page template, and link it from the sidebar and a row above. See CONTRIBUTING.md.