POPUP APPEARANCE
The popup is a brown rectangle, 2px SlateGray border, inside of border 10px top-bottom and 8px left-right to popup text-only content. Popup is always titled, “Definitions”. Popup title font is Arial, color white, bold 12pts, aligns left. Also, aligned left under title, there is a list, same font, color aqua, normal font weight, links only, links underline color aqua, each link on new line, each link is the filename of the file open in Sublime Text 3126: that is, the active file. Each “Definitions” link list filename is followed immediately to right of file name by a colon and then immediately followed by a random sequential whole number. By random sequential whole numbers, we mean the whole number string begins at a random whole number, and then counts a random consecutive string of sequential whole numbers up until the file-name list ends. I have seen the whole number link string begin anywhere from ‘0’ up to ‘245’. The brown popup box expands in size to exactly fit the “Definitions” title, and beneath title the ‘filename:number’ list, with text margins as noted.
POPUP BEHAVIOR
When the cursor enters the double-quotes of HTML built-in attribution, for example cursor moves into or over quotation for class=“anydata” or style=“anydata”, then the popup occurs. Behavior is immediately reproducible. Popup ‘filname:number’ links are all active. When any link is clicked, then the open active file containing the clicked ‘filename:number’ link auto-closes Sublime Text tab, and new file with identical file contents opens new tab with name ‘filename:number’ on desktop of Mac Pro, with filename extension of the closed file. For example, while editing file show-hide.html, mouse hovers inside double-quotes for attribute class=“dropdown”: immediately "Definitions popup appears and under title are two links, ‘show-hide.html:32’ and ‘show-hide.html:33’. We click link ‘show-hide.html:32’ and the show-hide.html file tab in Sublime Text 3126 slams shut, instantly replaced by a new tab “show-hide.html:32” and a new file appears on desktop named “show-hide.html:32.html.html”. The ST3 desktop file creation is immediately manually deleted. Original file is checked and appears okay, but content is copied, original file deleted, and replacement in original folder. Apple, shrugs, “Ask Sublime.”
HELP!
I have never seen anything like this ever, in 30 years of computing. WHAT IS GOING ON?



