Adjust icon size per UI team request
Normalizing SVG formatting
Remove unused image
Resize buttons in tabs, 'Search' and 'Goto line' per UI team request
Move project/folder disclose triangles 1px higher
Revert close button size for tabs to 18px: 24px seemed excessive
Merge remote-tracking branch 'upstream/master' into svg-icons-3
Synchronize styling of outline toggle button with the rest
Merge pull request #2589 from ussuri/svg-icons-3

Fine-tune SVG icons per UI team recommendations