How all these changes would look:

Details of the changes:
1. Make Status Bar taller, with a bigger font (or add a setting for custom size)
2. Allow custom spacing/padding (in pixels) either side of each property
3. For the Filename property, allow a custom width (longer filenames are truncated)
How these settings could look:

4. Change wording of 10 objects(s)/1 objects(s) selected to 10 total / 1 selected
5. Add a Setting: Display "objects(s)/objects(s) selected" on right of statusbar
6. Do not show Print size by default - few people need it!
7. Change "Properties" to "Dimensions" and ONLY show image dimensions (not number of colours)
8. For dimensions, use a multiplication symbol with spaces either side (eg 1000x1000 becomes 1000 × 1000)