If it is photos of glowing text I can probably tell you that it doesn’t look like it in real life, there are many factors to get a certain look.

But if you can show us an example of what color/glow you are looking than maybe we can help you figure out what to do!

Good step to add is to use vinyl something on the backside of the mirror where the screen isn’t visible to remove the light coming through from the back, this will give less distraction and a better reflection so it looks more lika a mirror and less like a tinted glass panel.

@Stoffbeuteluwe

Youcan always try identifying if the element has an assigned name with the inspection/development windows.

In this case the progressbar DIV has a classname (.widgetprogbarbkg)

So to hide it,just set display to none

.MMM-Fitbit2 .widgetprogbarbkg {
	display: none;
}

you can play around with gradient backgrounds

maybe this works (disclaimer : I haven’t tried it, just looked up text fade with css):

.calendar .title:before {
    content:'';
    width:100%;
    height:100%;    
    position:absolute;
    left:0;
    top:0;
    background: linear-gradient(to right, transparent, #000 100%);
}

.mmm-suncalc {
	position: absolute;
	top: 100px;
	left: 30px;
}

@hakansoydogan I do believe the Raspberry pi4 has dual hdmi out, so you can run two monitors with that. Just let the MM2 stretch over both and you can place your modules however you want,

@hango nevertheless, easier to keep things in one thread. That questions is there so one don’t accidentally brings up a dead thread.

Reading this : https://forum.magicmirror.builders/topic/4684/electron-cpu-usage/245

The last post says that the rotation doesn’t work with the drivers that are standard for Rpi 4.

So I would suggest you keep it in landscape mode and rotate it with html/css instead.
https://forum.magicmirror.builders/topic/9707/save-performance-when-rotating-screen-e-g-on-raspberry-pi

@hango Please answer in the question thread instead of creating a new one.

As samson said you are missing a comma after position

But it also likes like you are using a text editor that converts single quotes to smart quotes.

There is a difference between “clock” and "clock".
Use either the Nano text editor if you are working directly on the Pi, if you are working from another pc/mac change your text editor to one that doesn’t convert quotes to smart quotes (like atom, notepad+, sublime or similar)

And, when the value of an variable is a number or true/false you don’t use any quotes at all.

So

{
module: "clock",
position: "top_left",
config: {
   timeFormat:12,  ------------ Pure number, no quotes
   showPeriod:false,   ------------ true or false, no quotes
   displayType:"both",
   analogSize:"400px"
   }
},