[9.50b7+] Colors preview looks ugly with high font sizes

[Flint]

The changes in Colors Example box display for file panel produced one unexpected side effect: if user chose a bigger file panel font size, the sample text no longer fits into the Example box, which looks quite weird and unsightly.

I suggest that TC automatically decreased the size of the file panel font when drawing the preview (keeping the font face and width intact); the new size might be calculated from the string width, so that the text would fit. This way, the preview would look consistent and won't show strange half-cut symbols, and at the same time it will allow the user to get the sense of what he/she will see in the actual file panel.