Does almost everything I ask for:
- Draws on the screen
- Allows you to change the screen behind the drawing while leaving the drawing on the screen
- Has convenient keyboard shortcuts

Literally the only thing I wish it would have is the option to add a shadow (ideally also a customizable color) behind the marker so that it shows up easier on a variety of website backgrounds. Otherwise, this is extremely useful for virtual teaching.

Pros:
- Open souce
- Capable in any website, in my test
- User friendly design, easy to use and looks good
- Customizable in scripts and colors

Cons:
- Much resources needed, outdated computer may have lagging problem

very amazing feature! but may I suggest adding a short-cut for activating market instead of just mouse click on the icon? Thank you.

Works as advertised. It allows marking Pages with any number of colours, either from a pallet or custom defined (RGB). The pen has opacity/transparency control, as well as size. I missed a way of marking straight lines, like most drawing applications do (e.g., pressing SHIFT to move the pen just in vertical and horizontal lines), but, otherwise, it works well.

Unfortunately the one website I wanted to use this tool on didnt work: For Github, on clicking the pen, the site turns white. (The Pen still works, but i cant see the original page anymore and thus cant highlight anything.)

love the sleek ui! here's some suggestions:
- add the mouse mode to the mode selection menu
- add a text mode where you can write text

It's great, but can you add a thinner pen size please?

would be perfect except i have to remember to click the extension icon again for my marks to show up when returning to a web page.

there's actually no option to change the colour of the marker, as shown in the screenshot provided by the author.

Estaría bien que usase menos la CPU para funcionar, pero es simple, esteticamente bonita y muy funcional. Útil para presentaciones. Y poco intrusivo :D

For years, I have been taking screenshots to share with people, but always needed to edit them in a photo editor, so I could circle important things to draw attention (in the screenshot). This tool bypasses all that, allowing me to do so within the browser, and then easily take a screenshot.

It is only missing a highlight function. If that were to be added, then this would be perfect. But still, this is a must-have if you work in support or generally need to share screenshots, while pointing out things to people.

Well done.