Things end users care about but programmers don't

(And we agree with them, but our tools make it really hard to provide)

Colors

Change color of things
Nice default color palette
Use my preferred color palette
Use this color from here
Import/export color themes
Some words or identifiers should always have a specific color
The same thing should have the same color everywhere
Good contrast
Automatic contrast of text if I pick a dark/light background
Automatically generate color for large number of items
- All the colors should belong to the same palette
- Don't generate colors that are hard to tell apart
- Don't place similar colors close to each other
- Don't use the background color on things

Integrate with system accounts
Use accounts/permissions from Active Directory
Import from Excel/CSV
Import from email/email attachment
Export to Excel
Export to PDF/Image
Record a short video
- As a GIF
Send as email
- Send as email periodically
- Send as PDF attachment on an email
Import/attach images
- Crop before upload
- Compress
- Change Format
Use image as background but stretch the right way
Notifications on the app
- On apps on my phone
- By SMS
- On our systems
- On my mail

Good error handling
Good error descriptions
- Translated error messages
Tell me what to do to solve an error
Tell me what this does before I click on it
Support touch gestures and mouse
Keyboard shortcuts
- Customizable
Undo everywhere
Multiple undo
Recover deleted things
Ask before deleting
Copy and paste
Templates
Detailed and up to date guides in text with screenshots at each step and highlights
- And in Video
- Screenshots that stay up to date as the product evolves
- That are in sync with the version I'm using
- That adapt to my custom setup
Up to date and detailed documentation
Translated to my language
Sorting everywhere
- Natural sort
- Sort by multiple criteria
Filter everywhere
- Fuzzy filtering
- Case sensitive/insensitive filtering
- Filter by multiple/complex criteria
Track what is used where and warn me when deleting
Optional cascade deletion
Native and simple date picker on every platform
Sorted lists/selects (by the label!)
- Natural Sorting
Dropdowns with filtering but that behave like the native controls
Preview things
Consistent button ordering/labels
Consistent capitalization
Progress bars for slow/async operations
Responsive UI during slow operations
Disabling buttons during slow operations
Handling double clicks on things that should be clicked once
Clear indication of what can be clicked