AnvilRob 

Dark Mode looking great! Ok, I may have cheated. I used the Dark Reader add-on for browsers.

Nice. So much easier on the eyes. As much as we stare at screens all day, a bright screen is like looking into a bright light all day. After awhile, it starts tiring your eyes out.

30 yrs ago when I use to read all the reviews in PC Mag with a fine tooth comb and go thru all the minutiae on how they tested products I learned how to properly adjust a monitor. This was back in the day of CRTs and analog controls. There was no easy or practical way for them to properly setup a monitor at the factories. Too time consuming and by the time it got to where it was going, it would already be off anyway. When they came out with digital controls it was better, but still needed tweeking. These days it's mostly good enough just from the factory. I still tweak it a little just for old times sake.

Back then usually anytime I sat down at anybody elses computer the first thing I would do is say, you don't mind if I adjust your monitor for you. Most people didn't know you needed to and how. I would spend 5 minutes adjusting the picture. Back then you had to center it, properly size it and then adjust the colors, the brightness and contrast. After getting the best picture I could, the last thing I would do is slightly turn down the brightness. The picture still looked good. Just wasn't quite as bright so easier on your eyes. If you were going to be editing photos or critically looking at pictures, you would want to turn it back up a little. For everyday use it was good enough. To this day I still slightly turn down the brightness and at the end of the days my eyes thank me.

Can trading journals be deleted?

If you don't bet, you can't win.

Big Mike 

It hasn't, and currently isn't planned in the near future. Sorry. But I want to understand the contrast problem better, could you please take a screenshot that shows me the exact area where you are having trouble?

If you've ever read anything on machine vision, the way they do it is by detecting the edges to get an outline of the object and then do pattern recognition to try and guess what the object is. Edge detection relies on contrast. If there is not enough contrast the computers can't tell where the edges are. Also if you've done any photo editing if you use a sharpen filter you are basically kind of sort of enhancing the edges.

What does a sharpening filter do?
The sharpening process works by first creating a slightly blurred version of the original image, the unsharp mask. This is subtracted away from the original to detect the presence of edges. Contrast is then selectively increased along these edges using this mask — leaving behind a sharper final image.

So a bright white background with what looks like a grayish text doesn't have a lot of contrast making it harder to detect the edges.

As you get older, I'm 68, your eyesight ain't what it was. Even with reading glasses, and maybe getting just a little bit of cataracts it gets harder to detect the edges. I mostly notice my slight cataracts at night when bright lights cause a little "sparkle" from the light scattering when it hits it. In the daytime don't notice it. I've talked to people that get a lens in one eye for seeing distance and in the other eye for seeing closeup. They claim you get use to it after a few weeks. I'm like, but doesn't that turn you into a one eyed person? And you can see far away now, and closeup, but what about the stuff in the middle? So unless it's effecting your quality of life, not something you want to rush into.

The net effect of your eyes aging is comparable to slightly blurring a photo which makes it harder to detect the edges. It's just something to take into consideration when doing UI design. One thing I've done for decades is after adjusting my monitor for the best picture I can get is to slightly turn the brightest down. It's easier on the eyes which will thank you after steering at a monitor all day.

GlobexTrader 

Nice. So much easier on the eyes. As much as we stare at screens all day, a bright screen is like looking into a bright light all day. After awhile, it starts tiring your eyes out. 30 yrs ago when I use to read all the reviews in PC Mag with a fine tooth comb and go thru all the minutiae on how they tested products I learned how to properly adjust a monitor. This was back in the day of CRTs and analog controls. There was no easy or practical way for them to properly setup a monitor at the factories. Too time consuming and by the time it got to where it was going, it would already be off anyway. When they came out with digital controls it was better, but still needed tweeking. These days it's mostly good enough just from the factory. I still tweak it a little just for old times sake. Back then usually anytime I sat down at anybody elses computer the first thing I would do is say, you don't mind if I adjust your monitor for you. Most people didn't know you needed to and how. I would spend 5 minutes adjusting the picture. Back then you had to center it, properly size it and then adjust the colors, the brightness and contrast. After getting the best picture I could, the last thing I would do is slightly turn down the brightness. The picture still looked good. Just wasn't quite as bright so easier on your eyes. If you were going to be editing photos or critically looking at pictures, you would want to turn it back up a little. For everyday use it was good enough. To this day I still slightly turn down the brightness and at the end of the days my eyes thank me.

I remember adjusting monitors. I’m not as old as you, but I was around when Doom was installed on floppy disk, first version of AOL etc.

Getting Dark Reader extension for browsers is handy. It’s actually called Dark Reader. Has quick slide adjustments to tweak the page and it remembers those setting just for that website if you click the box for that.

AnvilRob 

I remember adjusting monitors. I’m not as old as you, but I was around when Doom was installed on floppy disk, first version of AOL etc. Getting Dark Reader extension for browsers is handy. It’s actually called Dark Reader. Has quick slide adjustments to tweak the page and it remembers those setting just for that website if you click the box for that.

This jogged my memory. 1984 I started working for Digital Controls in Norcross, GA. They made a little table top video game called Little Casino. It's been 40 yrs. I completely forgot all about this. Doing a quick google, OMG, there are pictures. When I first started working there they were still using black and white CRTs that they "colorized" by putting colored transparent tape on them. There was a nearby factory that was in 1984 still assembling 13 inch black and white TVs. Even back then I was wondering, who still buys black and white TVs. We would take the chassis, speaker and power supply out and throw the case and the tuner away. We would take the CRTs out of the chassis and these ladies would an ablout 3 wide piece of blue transparent tape on it. Then put a red one under it, and then smaller green ones on the top and bottom. Looking at these pictures, I don't remember the beige cases at all.

After about a year the factory was going to discontinue the black and white TVs so they started getting color CRTs out of South Korea. Since the color ones were so much more expensive that went with 12 inch ones. A CRT has electron guns in it and uses magnets to move the beams around. On the neck of the tube there are these 3 rings with magnets on them. Sometimes the alignment would get off and we would have to fiddle with those 3 rings to try and get the beams to line back up. It's been so long I forgot I use to do stuff like that. I may still have a circuit board in my basement. They were using 6502s for the CPU. The design was a little bit designed like the Apple. Wow, technology has really changed in the last 40 yrs.

Earlier this week I was doing some research. The exchanges these days are basically data centers and they will happily rent you colocation space in their data centers. Nasdaq will guarantee you sub 50 microsecond connections. That is astounding. Just knowing that you can cross out a whole lot of ways that people try to trade.

Here's a picture of the black and white models. You can see the colored tape on the tubes.

little-casino-47149[1]

Here's the smaller color one.
little-casino-47148[1]

Here's an old ad.
339000201[1]