Spyder Help Pane: Clickable icon and/or hot keys for zooming? - spyder

According to the Online Help, there should be magnifying glass icons with +/- signs for zooming in/out. I do not have these
The normal hot keys Ctrl++/= and Ctrl+- also do not work.
I have to go into Tools > Preferences > Appearance to set font sizes. This is not convenient.
Why do Ctrl++/= and Ctrl+- not work?
Is there a way to get the zoom icons onto the GUI?
Ultimately, I want to be able to zoom in on a whim to read small text, then zoom out on a whim to read the rest of the non-small text. This is made necessary by aging eyes and the fact that the text font & size varies, not only across the GUI, but also within the same pane. This is not obvious in the Help pane pictured above, but the text following the Definition section is bigger. If I maximize the Spyder GUI window and maximize the Help pane, I am looking at both Definition text and the larger ensuing text. It'd be great to zoom in and out on a per-pane basis, but zooming in/out on a whole-GUI basis would be better than not at all (or having to navigate to Preferences).
P.S. I am using Spyder 4.1.5 on Windows 10.

(Spyder maintainer here) Unfortunately the shortcuts Ctrl++/Ctrl+- don't work to Zoom In/Out in our Help pane.
However, you can perform those actions by doing a mouse right-click on that pane to get its context menu and click on their corresponding entries, as shown below:

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Why is my Octave GUI editor so buggy? How can I fix it?

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However, if I open any existing function, it is shown with way too much space between lines, and spaces and tabs show way more space than they should. An example is shown below:
I tried selecting the Edit - Preferences - General - Use custom file editor options, and chose "notepad++ -n%l %f. I have notepad++ installed already on my computer.
When I selected this option and clicked ok, the Octave GUI crashed. When I tried to reopen a file now, I get the error "could not start custom file editor".
If I change the font, it temporarily fixes the issue. But none of the changes persist. Often clicking OK crashes octave. And any time it's reopened, the fonts revert to default, and the spacing problems returns.
How can I make the editor show an appropriate leading and space width?
I would also like to be able to further customize, if possible. For example I'd like it to use a dark theme. But for now just showing a reasonable space between lines would make this at least useable.
I'm using Windows 10, Octave version 6.4.0

How to disable green highlight in Spyder

does anybody knows how to disable the green highlight in Spyder editor as I show in the picture below?
Thanks
Spyder has many settings which the user can change.
In Preferences>Tools>Appearance>Edit Selected Scheme we can select the colors of several highlights, including current cell. (followed by OK then Apply, which can take a few seconds, then OK).
Setting this to #19232d (which seems to be the color of the overall dark theme background) at least gives the appearance of highlighting having been stopped.
There seems to be no way of setting such a color to transparent (in the CSS sense).
Under Tools>Preferences>Editor it seems as though we can unset highlighting of the current cell, but this appears to get overwritten by the Highlight Occurrences after selection, and setting that to something huge in the hopes it would not kick in did not seem to work.
However, I do not claim to be a Spyder expert and would welcome feedback from those who are and who perhaps know of ways of stopping highlighting in certain areas completely.
(Spyder maintainer here) This is caused by a bug in our code. It'll be fixed in our 4.2.0 version, to be released in November 2020.
In the meantime, the solution is to reactivate the option Highlight current line, present in the menu Tools > Preferences > Editor > Display.

Removing Project Symbol Search button

Is it possible to remove or disable the Project Symbol Search button from the Dephi (10.2) editor. It is the magnifying glass on the far right in the image below.
It is a nuisance to me because I keep pressing it instead of the dropdown arrow on the Methods combo box next to it (because my hand co-ordination is poor) and it freezes the IDE for 20-30 seconds.
In Tools > Options > Editor Options > Display there is only an option to turn off the hole toolbar ("navigation toolbar").
The toolbar is not even mentioned in the docs for the options dialog!
But at least you can find information about it here and here in the docs.

Rotate/Resize Controls behave unexpectedly when JQueryUI widgets are used with Fabric.js

I just discovered Fabric.js and though the documentation is a lacking a bit, it seems like it will handle everything I need for an HTML-based Dream Board tool I'm building. It appears that it doesn't play well with JQueryUI, though.
When I set any of my objects to be JQueryUI widgets, button, dialog box, etc...the control handles seem to be non responsive on the top half of my canvas items, and even on the bottom, the hit areas for resizing/rotating are greatly reduced, which makes the items hard to manipulate. Has anyone run into this? Is this a known issue? I checked github and have tried to search SO to no avail.
Thank you!
http://seismicdevelopment.com/test/no-jquery-uis.html - No JQuery UI Widgets...behaves how I'd expect.
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The problem must be in offsets. jQueryUI is probably modifying height of those buttons, which moves canvas slightly down, comparing to how it was during initialization.
I explained this — and why it happens in Fabric — in more detail here.

Zoom to full screen?

How to activate/use this feature in D2010 ?!?
I have checked Zoom to full screen in Tools > Option > Editor Option > Display clicked Ok button but nothing happened. Ok, i said to myself, let's see what the help has to say about this. I pressed F1 key, wait a little, help's coming up but as i have expected, it has no idea about this, ironically: the help didn't help. Google did find some old blog posts which provided some outdated information like double click on the editor tab or pressing F5 will do the thick. But, that's not the case, so i'm asking here maybe somebody has more information about this.
That option controls whether the code editor, when zoomed, will zoom to occupy the entire screen. If that option isn't set, then maximizing the edit window will leave space at the top of the screen for the main IDE application window. If you never maximize the editor window, then that setting has no effect. It might also only have an effect when you're using the "classic undocked" layout mode.

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