starred/terminal
1
0
Fork 0
mirror of https://github.com/microsoft/terminal.git synced 2026-02-03 21:25:34 +00:00
Code Issues 19.0k Packages Projects Releases 20 Wiki Activity

Cascadia Code static vs variable (VF) rendering #19429

New Issue
Open
opened 2026-01-31 06:43:04 +00:00 by claunia · 0 comments
claunia commented 2026-01-31 06:43:04 +00:00
Owner
Copy Link

Originally created by @Finii on GitHub (Feb 21, 2023).

Windows Terminal version

1.16.10262.0

Windows build number

10.0.22000.1574

Other Software

Cascadia Code release 2111.01

Steps to reproduce

  • Remove Cascadia Cove that comes bundled with Windows Terminal [1]
  • Note that the bundled version is Cascadia Cove 2111.01 VF TrueType outlines
  • Manually install Cascadia Cove 2111.01 static Regular TrueType outlines
  • Start Windows Terminal
  • Take screenshot of text with capitals and small-letter i at some bigger size (effect is not size dependent though)
  • Close Windows Terminal, remove Cascadia Cove font
  • Install Cascadia Cove 2111.01 VF TrueType ourlines
  • Start Windows Terminal and repeat previous steps
  • Compare screenshots

[1] For people like me that is hard, here is a manual:

MAINTAINER EDIT: DO NOT FOLLOW THESE STEPS. Changing the permissions on WindowsApps is a one-way street to pain.
  • Gain access to C:/Programs/WindowsApps
  • Set youself as owner for C:\Program Files\WindowsApps\Microsoft.WindowsTerminal_1.15.3466.0_x64__8wekyb3d8bbwe
  • Set youself as owner for all 4 font files in that folder
  • Add full access right for everyone on the 4 fonts
  • Move the 4 fonts to another location (e.g. desktop) - deleting is impossible
  • Reboot
  • Enjoy to be able to install whichever Cascadia Code you like and use Windows Terminal with that

Note that a Windows Terminal update reinstalls the bundled font, of course.

I'm not entirely sure if this should be reported here or at Cascadia Code. But the issue can not be seen on WordPad and also not in terminals on other platforms, so I guess it is something specific to Windows Terminal.

I tried experimental.rendering.software true and false (and also experimental.useAtlasEngine) but the outcome is unchanged.

Related issues, that as far as I can see all are due to the effect described in this issue.

The problem with the issues above was that they all compare the VF to the static ones and the VF is hard to get rid of.

Expected Behavior

Both fonts should look the same. With maybe a very slight weight difference because one is interpolated on the fly.

Actual Behavior

  • The heights (capital and x) is visibly different
  • The dot on the small letter i is noticable down (or stays in place while the dotless-i glyph resizes)

The effect is even visible in the font preview window.
For easier visual comparison I use a renamed copy of Cascadia Cove Regular ttf with the name Delugia.

The first image shows that Delugia and Cascadia Cove static render the same (at least no really noticable differences):

static

The second image now compares Delugia and Cascadia Cove VF ttf. Because of the comparison above this is equivalent to comparing Cascadia Cove static to Cascadia Cove VF:

VF

Originally created by @Finii on GitHub (Feb 21, 2023). ### Windows Terminal version 1.16.10262.0 ### Windows build number 10.0.22000.1574 ### Other Software Cascadia Code release 2111.01 ### Steps to reproduce * Remove Cascadia Cove that comes bundled with Windows Terminal [1] * Note that the bundled version is Cascadia Cove 2111.01 VF TrueType outlines * Manually install Cascadia Cove 2111.01 static Regular TrueType outlines * Start Windows Terminal * Take screenshot of text with capitals and small-letter `i` at some bigger size (effect is not size dependent though) * Close Windows Terminal, remove Cascadia Cove font * Install Cascadia Cove 2111.01 VF TrueType ourlines * Start Windows Terminal and repeat previous steps * Compare screenshots [1] For people like me that is hard, here is a manual: <details> <summary>MAINTAINER EDIT: DO NOT FOLLOW THESE STEPS. Changing the permissions on WindowsApps is a one-way street to pain.</summary> * Gain access to C:/Programs/WindowsApps * Set youself as owner for C:\Program Files\WindowsApps\Microsoft.WindowsTerminal_1.15.3466.0_x64__8wekyb3d8bbwe * Set youself as owner for all 4 font files in that folder * Add full access right for everyone on the 4 fonts * Move the 4 fonts to another location (e.g. desktop) - deleting is impossible * Reboot * Enjoy to be able to install whichever Cascadia Code you like and use Windows Terminal with that Note that a Windows Terminal update reinstalls the bundled font, of course. </details> I'm not entirely sure if this should be reported here or at Cascadia Code. But the issue can not be seen on WordPad and also not in terminals on other platforms, so I guess it is something specific to Windows Terminal. I tried `experimental.rendering.software` true and false (and also `experimental.useAtlasEngine`) but the outcome is unchanged. Related issues, that as far as I can see all are due to the effect described in this issue. * https://github.com/microsoft/cascadia-code/issues/371 * https://github.com/ryanoasis/nerd-fonts/issues/998 * https://github.com/ryanoasis/nerd-fonts/issues/519 * https://github.com/adam7/delugia-code/pull/79 The problem with the issues above was that they all compare the VF to the static ones and the VF is hard to get rid of. ### Expected Behavior Both fonts should look the same. With maybe a very slight weight difference because one is interpolated on the fly. ### Actual Behavior * The heights (capital and x) is visibly different * The dot on the small letter `i` is noticable down (or stays in place while the dotless-i glyph resizes) The effect is even visible in the font preview window. For easier visual comparison I use a renamed copy of `Cascadia Cove Regular ttf` with the name `Delugia`. The first image shows that `Delugia` and `Cascadia Cove static` render the same (at least no really noticable differences): ![static](https://user-images.githubusercontent.com/16012374/220341419-fc602f6f-f98f-4b05-a0e8-5a3515b3b558.gif) The second image now compares `Delugia` and `Cascadia Cove VF ttf`. Because of the comparison above this is equivalent to comparing `Cascadia Cove static` to `Cascadia Cove VF`: ![VF](https://user-images.githubusercontent.com/16012374/220341449-68aa49a0-1187-4e3c-a971-dd819cfa8bab.gif)
claunia added the Needs-TriageIssue-Bug labels 2026-01-31 06:43:04 +00:00
Sign in to join this conversation.
No Branch/Tag Specified
Branches Tags
Labels
Clear labels
⛺ Reserved
A11yCO
A11yMAS
A11ySev1
A11ySev2
A11ySev3
A11yTTValidated
A11yUsable
A11yVoiceAccess
A11yWCAG
Area-Accessibility
Area-AtlasEngine
Area-AzureShell
Area-Build
Area-Build
Area-Chat
Area-CmdPal
Area-CodeHealth
Area-Commandline
Area-CookedRead
Area-DefApp
Area-Extensibility
Area-Fonts
Area-GroupPolicy
Area-i18n
Area-Input
Area-Interaction
Area-Interop
Area-Localization
Area-Output
Area-Performance
Area-Portable
Area-Quality
Area-Remoting
Area-Rendering
Area-Schema
Area-Server
Area-Settings
Area-SettingsUI
Area-ShellExtension
Area-ShellExtension
Area-ShellExtension
Area-Suggestions
Area-Suggestions
Area-TerminalConnection
Area-TerminalControl
Area-Theming
Area-UserInterface
Area-VT
Area-Windowing
Area-WPFControl
AutoMerge
Blocking-Ingestion
Culprit-Centennial
Culprit-WinUI
Disability-All
Disability-Blind
Disability-LowVision
Disability-Mobility
External-Blocked-WinUI3
Fixed
Gathering-Data
good first issue
HCL-E+D
HCL-WindowsTerminal
Help Wanted
Impact-Compatibility
Impact-Compliance
Impact-Correctness
Impact-Visual
In-PR
InclusionBacklog
InclusionBacklog-Windows TerminalWin32
InclusionCommitted-202206
Issue-Bug
Issue-Docs
Issue-Feature
Issue-Feature
Issue-Question
Issue-Samples
Issue-Scenario
Issue-Task
Needs-Attention
Needs-Author-Feedback
Needs-Bisect
Needs-Discussion
Needs-Repro
Needs-Tag-Fix
Needs-Tag-Fix
Needs-Triage
No-Recent-Activity
Priority-0
Priority-1
Priority-2
Priority-3
Product-Cmd.exe
Product-Colortool
Product-Colortool
Product-Colortool
Product-Conhost
Product-Conpty
Product-Meta
Product-Powershell
Product-Terminal
Product-WSL
pull-request
Mirrored from GitHub Pull Request
 Resolution-Answered
Resolution-By-Design
Resolution-Duplicate
Resolution-External
Resolution-Fix-Available
Resolution-Fix-Committed
Resolution-No-Repro
Resolution-Won't-Fix
Severity-Blocking
Severity-Crash
Severity-DataLoss
spam
this-will-be-a-breaking-change
Tracking-External
WindowsTerminal_Win32
Work-Item
zAskModeBug
zInbox-Bug
No Label Issue-Bug Needs-Triage
Milestone
No items
No Milestone
Projects
Clear projects
No project
Assignees
Clear assignees
claunia
No Assignees
1 Participants
Notifications
Due Date
No due date set.
Dependencies

No dependencies set.

Reference: starred/terminal#19429
Delete Branch "%!s()"

Deleting a branch is permanent. Although the deleted branch may continue to exist for a short time before it actually gets removed, it CANNOT be undone in most cases. Continue?