Can I change the font size in the App Designer editor?
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I have tried the usual shortcuts and tried to find something in preferences but have had no luck. It is mentioned in another thread that it's not possible, but can someone confirm? I am using 2016b.
https://www.mathworks.com/matlabcentral/answers/317240-matlab-with-hidpi-is-still-an-issue-on-linux
1 Comment
Michael Burke
on 14 Sep 2019
As of 19b (and maybe 19a) you can change the font size through the MATLAB preferences
Accepted Answer
More Answers (4)
Ed Callway
on 20 Feb 2018
4 votes
Just started using app designer, finally I can ditch VB for GUIs! But...I work on multiple monitors of different quality, diagonal size, and dot pitch/resolution. The app editor REALLY needs options to set font size and contrast, overall it is the visually toughest GUI I have to use, AND it has no adjustability!! Pease don't invent anything fancy, just the controls from regular Matlab editor would be fine.
1 Comment
Ed Callway
on 20 Feb 2018
To be more specific, a lot of the entire GUI is small grey text on a slightly different grey background - very hard to read. On my GPU if I pull the "extra gamma" slider down to 0.5 from 1.0 the GUI is far easier to read, but the rest of Windows is of course too dark. Suggestions: 1. Increase contrast between text and background to normal Matlab levels. 2. Add ability to change editor font size. 3. Add ability to change ribbon/menu/library size, although contrast is more important.
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Ed Callway
on 10 Feb 2019
1 vote
Well...I just came back a year later with 2017a...and app designer is still a low contrast, small font, unadjustable, unreadable nightmare. Unlike every other code editor ever. Even Notepad is adjustable. My only guess is no-one at Matlab has every tried to use this "editor". :-(
Ed Callway
on 10 Feb 2019
1 vote
Here's a composite screen cap example. Left is illegible App designer, right is normal Matlab editor. For a correct comparision, set browser magnification so the right side is your normal code size. Then try to read the left side.

Melissa Williams
on 18 Sep 2019
Edited: Melissa Williams
on 18 Sep 2019
0 votes
Yes! As of R2019a you can control the font size of the App Designer editor from the preferences panel. mathworks.com/help/matlab/creating_guis/app-designer-preferences.html
You can also zoom the entire App Designer window using ctrl+mouse wheel or ctrl and + or - and ctrl + 0 to restore.
3 Comments
Frank Urban
on 23 Jul 2020
Great but the contrast is still not enough for me. Font weight or choice could fix that. Please help.
Dmitry Timchenko
on 15 Oct 2020
And in 2020b it's still the same. Seems, Mathworks turns into a big corporation like Microsoft, with absolutely no connection between help desk and actual coders - both freelance? ;) Certainly App Designer was designed by a young person with perfect vision. Gray on gray fonts with grayscale antialiasing - it's so stylish, isn't it? :)
Dmitry Timchenko
on 15 Oct 2020
Dear Melissa, can you actually connect to the person responsible for App Designer and report our problems? Or, alternatively, there must be a way to solve the issue by editing internal Matlab files like .xml, .css, .js.
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