i noticed that you can change the distance from the text of the box, the thickness of the box, margins of the text (both bottom and top ones), and input any amount of text into the square, with any font size that you want, though i didn't figure out how to place the said text in a given way; it gets justified to the left. i also tried changing the font, but i don't know the names that can be inputted into it, so it sometimes works, sometimes doesn't; some of the ones that seem to work are courier new, times new roman, tahoma, verdana; tried inputting comic sans under the label "Comic-Sans" and others, but it didn't give me that. also if you're wondering where i got the data of picrel from, it's from
html-color.org (every datum here except the approximate wavelength) and encycolorpedia (the approximate wavelength)