Transparency in tooltips
While the colorpicker is all fine and good, sometimes you don’t want to pick a color at all. To completely remove the tooltip background, you can use RGBA values like so:
The above value will result in a completely transparent background. The same can be used for the other colorpicker fields, for example the tooltip border, as necessary.
You can also use RGBA to achieve semi-transparent backgrounds. The following example will create a semi-transparent black background.
For more information on RGBA values, see this helpful article from W3C Schools.
Note: After entering an RGBA value, the colorpicker may become “stuck” in transparent mode. To force it back to using regular hexadecimal color codes, you can enter a color such as #000000 into the field and then colorpick normally from there.