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How to increase the size of Compiz shadows under app windows

Not happy with the size of Compiz drop shadows under windows? Here’s how to make them larger.

By default CCSM’s (CompizConfig Settings Manager) ‘Shadow Radius’ setting for Window Decorations the fixed at a maximum of 18; you’re unable to go higher using the slider or by adjusting the value box.

18 value max compiz ccsm

However, you are able to enter a value much greater than CCSM offer via gconf-editor:

  • Open up gconf-editor (ALT+F2 > gconf-editor)
  • Navigate to /apps/compiz/plugins/decoration/allscreens/options/
  • Change ‘shadow_radius‘ to a higher value; the effect will apply immediately for you to gauge reaction

gconf editing for compiz shadow

I played around, setting mine to 25 and then 48. The result was a very deep shadow that gives the appearance of ‘lifting’ windows off the page. Your tastes will likely vary, so have a play around with different values to find a setting that suits you.

Compiz radius shadow at 48

Compiz radius shadow at 48

Compiz radius shadow at 25

Compiz radius shadow at 25

Thanks to Tillux