PS What s going on with visuals and metrics in character spacing

Personally, I think that the metric is to typeset the characters according to the font itself (the information in the font package) that has the kerning information, we know that the kerning will affect the sense of reading, for example, the English part of the kerning (and proportion) that comes with the Yi Song style (called "Song style" in Windows) has been criticized, so that for a period of time, the regular text is the Chinese part of the Song style, the English part of the times new roman, not all of the Song style, as shown in the figure:

<> back to the word spacing in ps, I think it's actually in accordance with the new standard set by ps itself (maybe an algorithm), by calculating how the spacing between the characters needs to be adjusted is a beautiful layout, more readable, for example, the letter i in the English part, because i is as thin as a pen barrel, if the spacing of each letter is the same, it makes the letters in the entire typography not too loose or not too compact, rather than evenly distributed, The same some font designers do not consider this when designing, it may be that this reason ps provides their own solution, of course, the spacing of the font will be more compact after being set to "visual", so it can be understood as a balance between visual readability and compactness of typography, for ordinary users, the standard measurement is sufficient, but for people who have requirements for typography, this is a more convenient method, I have read some books on font design, when talking about this word spacing, I found that there is still a lot of knowledge, The Office we commonly use and the popular PS software seem "fool-proof" in comparison

Select Chinese characters, adjust the spacing, you can adjust the word spacing: Use the typing tool to select Chinese characters, and then press alt+left and right arrow keys Adjust the word line spacing: Use the typing tool to select Chinese characters, and then press alt+up and down arrow keys.

Personally, I think that the metric is to typeset the characters according to the font itself (the information in the font package) has the kerning information, we know that the kerning will affect the sense of reading, for example, the English part of the track (and proportion) that comes with the Song style (called "Song style" in Windows) has been criticized, so that for a period of time the regular text is Chinese part of the Song style, the English part of the times

<> back to the word spacing in ps, I think it's actually in accordance with the new standard set by ps itself (maybe an algorithm), by calculating how the spacing between the characters needs to be adjusted is a beautiful layout, more readable, for example, the letter i in the English part, because i is as thin as a pen barrel, if the spacing of each letter is the same, it makes the letters in the entire typography not too loose or not too compact, rather than evenly distributed, The same some font designers do not consider this when designing, it may be that this reason ps provides their own solution, of course, the spacing of the font will be more compact after being set to "visual", so it can be understood as a balance between visual readability and compactness of typography, for ordinary users, the standard measurement is sufficient, but for people who have requirements for typography, this is a more convenient method, I have read some books on font design, when talking about this word spacing, I found that there is still a lot of knowledge, The Office we commonly use and the popular PS software seem "fool-proof" in comparison