Microsoft Visual Studio For Mac Shows Red Color Javascript


I've been unable to figure out why these images won't show up on my Macbook Air on OS X Yosemite 10.10.5 and Office 2016 version 15.40, but instead display a red X. Both of these documents (One is a Word document & the other is an Excel document) were downloaded off my my school website where us students download lecture slides/documents for.


When you are working with long code files, it can be hard to keep track of where everything is in the file. You can customize the scroll bar of the code editor to give you an overall picture of what's happening in your code.


You can select whether the scroll bar shows annotations such as code changes, breakpoints, bookmarks, errors, and caret position.

  1. Open the Scroll Bars options page by choosing Tools > Options > Text Editor > All Languages > Scroll Bars.

  2. Select Show Annotations over vertical scroll bar, and then select the annotations you want to see. The available annotations are:

    • changes
    • marks
    • errors
    • caret position


    The Show marks option includes breakpoints and bookmarks.

Try it out by opening a large code file and replacing some text that occurs in several places in the file. The scroll bar shows you the effect of the replacements, so you can back out your changes if you replaced something you shouldn't have.

  1. When choosing colors, you should also consider whether you want your audience to print your SmartArt graphic or view it online. Tip: If an image is part of your background slide, color combinations with Transparent in the name work best to show off a more refined design in your document.
  2. Go to Visual Studio 'ToolsOptionsEnvironmentFonts and Colors' the menu shows a 'Display Items' list, select 'Identifiers' (out of which 'methods' is a member). Use the format controls to personalize the displaying of your chosen item. Unfortunately, variables, instances and namespaces are members of 'Identifiers' so they will affected too.

Here's how the scroll bar looks after a search for a string. Notice that all instances of the string appear in the scroll bar.

Here's the scroll bar after replacing all the instances of the string. The red marks in the scroll bar show where the text replacement introduced errors.

Display modes

The scroll bar has two modes: bar mode and map mode.

Bar mode

Bar mode displays annotation indicators on the scroll bar. Clicking on the scroll bar scrolls the page up or down but does not jump to that location in the file.

Microsoft Visual Studio For Mac Shows Red Color Javascript

Map mode

Map mode displays lines of code, in miniature, on the scroll bar. You can choose how wide the map column is by selecting a value in Source overview. To enable a larger preview of the code when you rest the pointer on the map, select the Show Preview Tooltip option. Collapsed regions are shaded differently and expand when you double-click them.


You can turn the miniature code view off in map mode by setting Source overview to Off. If Show Preview Tooltip is selected, you still see a preview of the code at that location when you hover your pointer on the scroll bar, and the cursor still jumps to that location in the file when you click.

The following image shows the search example when map mode is on and the width is set to Medium:

The following image shows the Show Preview Tooltip option:


To change the colors that you see in map mode, choose Tools > Options > Environment > Fonts and Colors. Next, in Display items, choose any of the items that are preceded with 'Overview', make the color changes you want, and then choose OK.

See also


You can change the default font face, adjust the font size, and change the foreground and background colors for various text Display items in the code editor. When you change font settings, keep the following information in mind:

  • The settings for Font and Size are global for all text elements in all Visual Studio editors.

  • The names of fixed width fonts are listed in bold.

  • Item foreground, Item background, and Bold options can be set for each type of text element. For example, if you change colors and select Bold for Comment and Bookmarks, other types of text elements will be unaffected.


To learn how to customize the fonts and colors for the IDE and not just for the code editor, see the How to: Change fonts and colors in Visual Studio page.

Change the default font face, size, and colors

  1. Select Options from the Tools menu. Under Environment, select Fonts and Colors.

  2. In Show settings for, select Text Editor.

  3. Modify the Font and Size options to change the font face and size for all text elements in all editors.

  4. Select the appropriate item in Display items, and then modify the Item foreground and Item background options.


    Click Use Defaults to reset to the default settings.

  5. Click OK.

Next steps

To learn more about the font and color changes you can make to the IDE by using the Options dialog box, see the Fonts and Colors, Environment, Options Dialog Box page.

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Microsoft Visual Studio For Mac Shows Red Color Javascript

Microsoft Visual Studio For Mac Shows Red Color Javascript Developer

See also