added PNG export option

see #13 for more info

added SVG export option

and new preview toolbar with vega spec filename display

see #12 for more info.

dev log readme update

see #VegaViewer tag on Twitter for the latest and greatest updates on this vscode extension and what's in store next.

loads vega scripts from local folder instead of cdn

resolves #10

added Vega preview restore and reveal enhancements

Implemented proper webview panel serializer to restore open Vega previews on code restart.

see #8 & #9 for more info

added local data load support

v1.1.0

#1 added local data load support

added Vega Preview menu shortcuts and pics to readme

v1.0.5

preview readme update v. bump

added Vega Preview to Explorer context and Editor title and context menues

v1.0.4

added Vega preview to Explorer context and Editor title and context m…

added vscode contributions info

v1.0.3

added viwer code contributions to readme

retain Vega preview context when hidden for preserving toggles state

v1.0.2

v. bump for preview retain context