feeling color is delicious, wow it feels so good

A quick side note is that these glasses work best for people who are green or red deficient. Not everyone who is color blind sees new colors, sometimes they may just experience a change in contrast or something less impactful.

I wonder if people with color blindness attribute certain emotions to colors differently. IE - yellow is commonly associated with happiness, red is anger or confidence, etc. I wonder how different day to day life is with color blindness.

I wonder if marketing materials pick colors in such a way that they appear appealing to those with color deficiencies as well as those with full color vision.

Is color blindness caused by certain cone cells not functioning properly?

I wonder how the glasses work. In the case of red/green colorblindness, do they somehow shift the wavelength of certain colors to make them more distinguishable? If it is the case that color blindness happens due to a type of cone cell not functioning, isn't it analogous to having RGB displays that are, for example, missing green pixels (which means green would be impossible no matter how we adjust R&B)?

Answering some of the questions above. Using the red/green colorblindness example, I believe what color-blindness corrective glasses do is they filter out specific wavelengths of light that are responsible for confusing similar colors. Therefore, in this case, filtering out light in the green part of the spectrum, making red-green color-blinded people easier to distinguish between the two colors.

The principle of color blindness correction contact lens is based on the complementary color antagonism, the special coating on the lens, to produce a cut-off wavelength effect, for long wavelengths can be transmitted, for short wavelengths occur reflection. By wearing color-blind glasses, the original color-blind chart can be correctly recognized, and the effect of correcting color vision disorder can be achieved.

While color blindness glasses have been around for some time, color blindness correction contact lenses are a newer technology that is becoming increasingly popular. These lenses work by using a special coating to selectively filter out certain wavelengths of light and enhance the contrast between different hues. The principle of complementary color antagonism is also used in these lenses, with the coating producing a cut-off wavelength effect that allows long wavelengths to pass through while reflecting short wavelengths.

The colors here seem to be more pastel-y which seems to feel better, I wonder if there is a technical reason for such accents "feeling" better

In brief:

• There are multiple types of color vision deficiency. The most common is caused by an anomaly in the genes for the M or L photopigment, causing the M and L response cones for the cones to be closer together. If sufficiently close together, they produce so close to the same activation that red and green are hard to distinguish.
• Enchroma glasses are sometimes called color notch filters. The basic concept is that the glasses are a spectral filter that blocks the peak wavelengths absorbed by M and L. This causes the tails of the M and L photopigments to dominate the activations of M and L cone cells. The response functions in the tails are more different than at the peak for those with red-green color vision deficiency, so this amplifies the red / green color differences and makes them more salient.

Here is a paper if you are interested in reading more.