KING COLORLINE

Chrome toolbar concept

One icon carries the whole day.

The fill shows the current period color, the border shows Navy or Gold week, and optional personal class names make the popup immediately recognizable.

Download Chrome extension.zipInstallation instructions
No week borderNeutral period fill
King Colorline
kingcolorline.school

Tuesday, September 8, 2026

Schedule unknown

Click the two-color icon in the toolbar

Current status

Loading schedule

Up next

No more events

Day complete

Next class

No more classes

Tomorrow’s schedule appears after dismissal

Today’s Colorline

8:00 AM–3:20 PM

0 scheduled blocks
No schedule is available for this date.

Personal preferences

Name each block once.

Open Preferences from the popup to add a personal name to any of the 16 color/minor blocks. The custom name appears first while the official block remains visible beneath it.

Class name example

Study HallPink m1

New Tab behavior

Show King ColorlineOff opens Google instead

Chrome does not support an optional native New Tab override. Using Google as the off state avoids requesting access to browsing history.

Chrome setup

Install King Colorline

Chrome loads this download as an unpacked extension. Setup takes about a minute.

Download extension.zip
  1. 1

    Download and extract

    Download the ZIP, then extract it. Chrome cannot load the ZIP itself.

  2. 2

    Open Extensions

    Enter chrome://extensions in Chrome’s address bar.

  3. 3

    Load the folder

    Turn on Developer mode, select Load unpacked, and choose the extracted King-Colorline-Chrome-Extension folder containing manifest.json.

  4. 4

    Pin and use

    Open Chrome’s Extensions menu and pin King Colorline. Select the icon for the popup, then open Preferences to add class names or change New Tab behavior.

Testing before school starts: Before , the extension shows a Test date control. It disappears automatically when Opening Day begins in New York and clears any saved test date.

If Developer mode or Load unpacked is unavailable, the school’s Chrome administrator must allow unpacked extensions.