Stylesmith 1.16.1

Changed

• Cleaner Problem Lens gutter icons: a bold X for errors, without the square around it, a bold ! for warnings, without the triangle, and a bold i for info, without the circle. The colors stay the same, and each kind of problem still has its own shape.
• Problem outlines are now solid problem underlines: a calm, solid underline under the exact code instead of a box around it, in the same colors. The setting stays stylesmith.effects.diagnosticHighlights.