The tooltips added for shader nodes in D15309 are very helpful already. This commit makes a few tweaks to make them more consistent, concise, and includes some fixes. Note that this might move some descriptions further away from the wording in the manual. * Make wording more concise * Start fewer new sentences * Use "For Example" slightly less * Avoid repeating the node's name unnecessarily * Spelling/grammar fixes * Don't capitalize some words * Use consistent verb conjugation * Use ASCII characters/more common quote symbols * Corrections to information * Plural/singular corrections * "smoke domains" -> "volume grids" * Fix tooltip for separate and combine color nodes * Refer to color sockets as colors rather than "images" * Avoid "advice" in a few places, which should be left for the manual * Remove information for sockets and could be in their tooltips * Avoid referring to the locations of a property in the UI * Avoid manual newlines (mostly reserve for "Note:") * Leave UI code in control of wrapping, which is more consistent * Add some information * That the UV map and color attribute nodes use a default * That Voronoi is "based on the distance to random points" * Add "(Deprecated)" to old color combine and separate nodes Differential Revision: https://developer.blender.org/D15381