Improve dag code readability on Airflow UI #67359

Closed
#67391
Closed
Improve dag code readability on Airflow UI#67359
#67391
Labels
area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests

Description

@karenbraganz
karenbraganz
opened on May 22, 2026

Description

The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.

On Airflow 3.1:

Image

On Airflow 3.2:

Image

It would be great if we could expand this code view to the entire screen for readability.

A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.

For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.

Image

Only when I scroll to the bottom of this code where this word is present will it detect a match.

Image

This was not the case in Airflow 3.1.

Use case/motivation

This feature would improve code readability on the UI.

Related issues

No response

Are you willing to submit a PR?

  • Yes I am willing to submit a PR!

Code of Conduct

Metadata

Metadata

Assignees

No one assigned

    Labels

    area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests

    Type

    No type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions

      , 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
       blocks
(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
});
}
addCopyButtons();
// Re-run on dynamic content
var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

      Skip to content
      Improve dag code readability on Airflow UI #67359
      Closed
      #67391
      Closed
      Improve dag code readability on Airflow UI#67359
      #67391
      Labels
      area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
      Description
      @karenbraganz
      karenbraganz
      opened on May 22, 2026
      Description
      The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.
      On Airflow 3.1:
      Image
      On Airflow 3.2:
      Image
      It would be great if we could expand this code view to the entire screen for readability.
      A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.
      For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.
      Image
      Only when I scroll to the bottom of this code where this word is present will it detect a match.
      Image
      This was not the case in Airflow 3.1.
      Use case/motivation
      This feature would improve code readability on the UI.
      Related issues
      No response
      Are you willing to submit a PR?
      •  Yes I am willing to submit a PR!
      Code of Conduct
      Metadata
      Metadata
      Assignees
      No one assigned
        Labels
        area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
        Type
        No type
        Projects
        No projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

          Skip to content
          Improve dag code readability on Airflow UI #67359
          Closed
          #67391
          Closed
          Improve dag code readability on Airflow UI#67359
          #67391
          Labels
          area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
          Description
          @karenbraganz
          karenbraganz
          opened on May 22, 2026
          Description
          The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.
          On Airflow 3.1:
          Image
          On Airflow 3.2:
          Image
          It would be great if we could expand this code view to the entire screen for readability.
          A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.
          For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.
          Image
          Only when I scroll to the bottom of this code where this word is present will it detect a match.
          Image
          This was not the case in Airflow 3.1.
          Use case/motivation
          This feature would improve code readability on the UI.
          Related issues
          No response
          Are you willing to submit a PR?
          •  Yes I am willing to submit a PR!
          Code of Conduct
          Metadata
          Metadata
          Assignees
          No one assigned
            Labels
            area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
            Type
            No type
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
var q = url.searchParams.get('q') || url.searchParams.get('p');
if (q) {
terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
}
}
if (terms.length === 0) return;
var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
terms.forEach(function(term) {
var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
if (regex.test(text)) {
found = true;
var frag = document.createDocumentFragment();
var parts = text.split(regex);
parts.forEach(function(part, i) {
if (i % 2 === 0) {
frag.appendChild(document.createTextNode(part));
} else {
var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
}
});
node.parentNode.replaceChild(frag, node);
}
});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              Improve dag code readability on Airflow UI #67359
              Closed
              #67391
              Closed
              Improve dag code readability on Airflow UI#67359
              #67391
              Labels
              area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
              Description
              @karenbraganz
              karenbraganz
              opened on May 22, 2026
              Description
              The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.
              On Airflow 3.1:
              Image
              On Airflow 3.2:
              Image
              It would be great if we could expand this code view to the entire screen for readability.
              A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.
              For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.
              Image
              Only when I scroll to the bottom of this code where this word is present will it detect a match.
              Image
              This was not the case in Airflow 3.1.
              Use case/motivation
              This feature would improve code readability on the UI.
              Related issues
              No response
              Are you willing to submit a PR?
              •  Yes I am willing to submit a PR!
              Code of Conduct
              Metadata
              Metadata
              Assignees
              No one assigned
                Labels
                area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                Type
                No type
                Projects
                No projects
                  Milestone
                  No milestone
                  Relationships
                  None yet
                  Development
                  No branches or pull requests
                  Issue actions
                  
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

                  Skip to content
                  Improve dag code readability on Airflow UI #67359
                  Closed
                  #67391
                  Closed
                  Improve dag code readability on Airflow UI#67359
                  #67391
                  Labels
                  area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                  Description
                  @karenbraganz
                  karenbraganz
                  opened on May 22, 2026
                  Description
                  The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.
                  On Airflow 3.1:
                  Image
                  On Airflow 3.2:
                  Image
                  It would be great if we could expand this code view to the entire screen for readability.
                  A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.
                  For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.
                  Image
                  Only when I scroll to the bottom of this code where this word is present will it detect a match.
                  Image
                  This was not the case in Airflow 3.1.
                  Use case/motivation
                  This feature would improve code readability on the UI.
                  Related issues
                  No response
                  Are you willing to submit a PR?
                  •  Yes I am willing to submit a PR!
                  Code of Conduct
                  Metadata
                  Metadata
                  Assignees
                  No one assigned
                    Labels
                    area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                    Type
                    No type
                    Projects
                    No projects
                      Milestone
                      No milestone
                      Relationships
                      None yet
                      Development
                      No branches or pull requests
                      Issue actions
                      
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                      Skip to content
                      Improve dag code readability on Airflow UI #67359
                      Closed
                      #67391
                      Closed
                      Improve dag code readability on Airflow UI#67359
                      #67391
                      Labels
                      area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                      Description
                      @karenbraganz
                      karenbraganz
                      opened on May 22, 2026
                      Description
                      The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.
                      On Airflow 3.1:
                      Image
                      On Airflow 3.2:
                      Image
                      It would be great if we could expand this code view to the entire screen for readability.
                      A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.
                      For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.
                      Image
                      Only when I scroll to the bottom of this code where this word is present will it detect a match.
                      Image
                      This was not the case in Airflow 3.1.
                      Use case/motivation
                      This feature would improve code readability on the UI.
                      Related issues
                      No response
                      Are you willing to submit a PR?
                      •  Yes I am willing to submit a PR!
                      Code of Conduct
                      Metadata
                      Metadata
                      Assignees
                      No one assigned
                        Labels
                        area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                        Type
                        No type
                        Projects
                        No projects
                          Milestone
                          No milestone
                          Relationships
                          None yet
                          Development
                          No branches or pull requests
                          Issue actions
                          
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

                          Skip to content
                          Improve dag code readability on Airflow UI #67359
                          Closed
                          #67391
                          Closed
                          Improve dag code readability on Airflow UI#67359
                          #67391
                          Labels
                          area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                          Description
                          @karenbraganz
                          karenbraganz
                          opened on May 22, 2026
                          Description
                          The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.
                          On Airflow 3.1:
                          Image
                          On Airflow 3.2:
                          Image
                          It would be great if we could expand this code view to the entire screen for readability.
                          A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.
                          For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.
                          Image
                          Only when I scroll to the bottom of this code where this word is present will it detect a match.
                          Image
                          This was not the case in Airflow 3.1.
                          Use case/motivation
                          This feature would improve code readability on the UI.
                          Related issues
                          No response
                          Are you willing to submit a PR?
                          •  Yes I am willing to submit a PR!
                          Code of Conduct
                          Metadata
                          Metadata
                          Assignees
                          No one assigned
                            Labels
                            area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                            Type
                            No type
                            Projects
                            No projects
                              Milestone
                              No milestone
                              Relationships
                              None yet
                              Development
                              No branches or pull requests
                              Issue actions
                              
, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

                              Skip to content
                              Improve dag code readability on Airflow UI #67359
                              Closed
                              #67391
                              Closed
                              Improve dag code readability on Airflow UI#67359
                              #67391
                              Labels
                              area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                              Description
                              @karenbraganz
                              karenbraganz
                              opened on May 22, 2026
                              Description
                              The window displaying the dag code in the Airflow UI has become smaller in Airflow 3.2 and harder to read from.
                              On Airflow 3.1:
                              Image
                              On Airflow 3.2:
                              Image
                              It would be great if we could expand this code view to the entire screen for readability.
                              A feature to filter the dag code for keywords or at least use cmd/ctrl+F would be helpful for troubleshooting. On Airflow 3.1, we could use cmd/ctrl+F to search for keywords in the dag code even if those words were not on the screen without scrolling. In Airflow 3.2, only the words visible in the small window will be highlighted with cmd/ctrl+F.
                              For example, here I am running cmd+F for the word "instantiate", and it shows 0 matches.
                              Image
                              Only when I scroll to the bottom of this code where this word is present will it detect a match.
                              Image
                              This was not the case in Airflow 3.1.
                              Use case/motivation
                              This feature would improve code readability on the UI.
                              Related issues
                              No response
                              Are you willing to submit a PR?
                              •  Yes I am willing to submit a PR!
                              Code of Conduct
                              Metadata
                              Metadata
                              Assignees
                              No one assigned
                                Labels
                                area:UIRelated to UI/UX. For Frontend Developers.kind:featureFeature Requests
                                Type
                                No type
                                Projects
                                No projects
                                  Milestone
                                  No milestone
                                  Relationships
                                  None yet
                                  Development
                                  No branches or pull requests
                                  Issue actions