Install "Shade Paint" By: 621Shadows

Instructions:
This is an app where you can move your mouse around to paint. Remember that your mouse only moves when you are holding it. If you move up to the top of the screen you can select any of the colors. The top left of the screen shows the color that you are currently selected on. Since there is no save features, take a screenshot by hitting f2.

Command:

/summon FallingSand ~ ~3 ~ {Block:chain_command_block,Data:0,TileEntityData:{auto:1b,CustomName:"@",powered:0b,Command:"/execute @e[name=101010101] ~ ~ ~ /setblock ~ ~33 ~ minecraft:redstone_block",id:"Control",SuccessCount:0,TrackOutput:1b},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:chain_command_block,Data:0,TileEntityData:{conditionMet:0b,auto:1b,CustomName:"@",powered:0b,Command:"/execute @e[name=101010101] ~ ~ ~ /setblock ~ ~32 ~ minecraft:structure_block 1 0 {metadata:\"\",mirror:\"NONE\",ignoreEntities:1b,powered:0b,seed:0L,author:\"621Shadows\",rotation:\"NONE\",posX:-1,mode:\"LOAD\",posY:-32,posZ:-1,integrity:1.0f,showair:0b,name:\"SpawnShadePaint\",id:\"Structure\",showboundingbox:0b}",id:"Control",TrackOutput:1b},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:command_block,Data:0,TileEntityData:{conditionMet:0b,auto:0b,CustomName:"@",powered:0b,Command:"/summon ArmorStand ~ ~-3 ~ {CustomName:\"101010101\"}",id:"Control",SuccessCount:0,TrackOutput:1b},Time:1,DropItem:0,Passengers:[{id:"FallingSand",Block:redstone_block,Data:0,Time:1,DropItem:0}]}]}]}